Biology essay papers

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Biology essays / Marfan's Syndrome
Marfan's Syndrome is most often a hereditary disease. The gene which causes Marfan's Syndrome is a dominant gene, yet, Marfan's Syndrome is a very rare disease. It is estimated that 5 out of every 100,000 people have Marfan's Syndrome. If one parent has Marfan's Syndrome, there is a 50% his/her children will have it as well. In some cases, Marfan's Syndrome is not always hereditary. Nearly 15...
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The effects of pH on mung beans Gloria Cheng Winsy Cheung Lily Wong Christine Yen January 15, 1998 Abstract This experiment explores how different pH environments affect the growth of mung beans. The mung beans were grown in water with various pH levels, consisted of pH levels 5, 6, 7, 8, and 9. A replicated design was used consisting of 3 runs for each pH level. The following resu...
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Biology essays / Bottlenose Dolphins
Bottlenose Dolphins The Bottlenose Dolphins Live in Fiordland New Zealand. It is a spectacular environment where it snows all winter and sometimes part of the fiord freezes over. The sides of the fiord are like big pillars of rock reaching way out into the sky. The fiord also consists of great number of wild life including Flora, Fauna, Seals, Penguins, Crayfish, and some types of Sharks. ...
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Biology essays / THE BLACK PLAGUE
The Plague is a word that horrified much of the population over the centuries around the globe. It is no less fearful a word today. This term describes several diseases; the three most common forms are known as the Bubonic Plague, Septicemia, and Pneumonic. Plague pneumonia, or pneumonic plague, is caused by the same bacteria as bubonic plague but is acquired by inhaling infected droplets from the...
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Lymphomas are cancers of the lymph nodes and lymphatic tissues which make up the lymphatic system. The lymphatic system produces lymphocytes, cells that help the body fight diseases. One type of lymphoma is Hodgkin's disease, which along with at least 10 other types of lymphoma cause around 50,000 lymphoma cases globally every year. This accounts for about 5% of the world's cancer cases. The...
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Biology essays / Starfish
The asteroid, more commonly known as the starfish, or sea star, is an invertebrate that lives mainly in an ocianic environment. These unique and unusual creatures have a number of arms that protrude away from their spiny skinned bodies. The exact number of arms depends on the species; some have only three, and the most is 42. Most people commonly associate the starfish with haveing five arems. ...
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Biology essays / Dermatology
Dermatology Dermatology is a medical specialty dealing with the diagnosis and treatment of diseases of the skin. These are conditions of the skin such as rashes,acne,warts,moles,skin cancers, etc. Dermatology developed as a subspecialty of internal medicine in the 18th century; it was initially combined with the diagnosis and treatment of venereal diseases because syphilis was an impor...
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Tara Feeney Oct. 24, 1997 1st Period Cardiovascular System The cardiovascular system, also known as the circulatory system, refers to the course taken by the blood through the arteries, capillaries, and veins and back to the heart. This system enables dissolved materials - oxygen, carbon dioxide, nutrients, and wastes - to be transported throughout the body...
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The effect of stretching on the muscles of athletes A bit about our muscles… Our muscles are made up of very small filaments that are called Myrofribrils. Some of these are thicker than others. A bridging, locking. mechanism, which prevents these filaments from disengaging when they get to a certain length, permits motion of each muscle within a certain range. When we stretch...
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Biology essays / Ebola Zaire
Have a throbbing headache? An ache behind the reddened eyes. Relentless now, two days ago you were normal. Nausea now sets in with a spiked fever. Next you began to vomit. After a while of intense vomiting you end up with dry heaves, and at the same time you start to become strangely passive. Your face starts to loose its normal appearance, the glow is completely gone. Your face is now an e...
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Biology essays / Ribosomes
Ribosomes play a very important role in our everyday life. If it wasn't for them your body wouldn't be able to function correctly. They make tears in your eyes, to keep your eyes moist. They grow hair for you, it also keeps an ample supply of saliva in your mouth, even though you are constantly swallowing. One of the most important thing it does is, it transfers protein in food, into your musc...
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Biology essays / Cryogenics
Cryogenics is the science that deals with subfreezing temperatures and how they effect matter. There are several different fields of cryogenics, such as cryobiology. Cryobiologists study the effect of severe cold on living things, usually warm-blooded animals. The purpose of most of these studies is to find a way to better store cells and tissues for transplantation that is not to be done immed...
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Biology essays / Turner Syndrome
INTRODUCTION There are many possible reasons why a child may grow slowly, including: hereditary factors (short parents), diseases affecting the kidneys; heart, lungs or intestines; hormone imbalances; severe stress or emotional deprivation; infections in the womb before birth; bone diseases; and genetic or chromosomal abnormalities. The Turner Syndrome (known as Ullrich-Turner Syndrome in Germa...
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Biology essays / Coral Reefs
The most beautiful and well engrossed houses in the whole world belong to a huge variety of tropical fish. These houses are underwater vertebrates that have caught the attention of many human beings for a spectacular amount of time. Coral reefs are not only pretty, actually quite beautiful, and they present a great deal of human interest; but, they also render an enormous amount of shelter ...
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Biology essays / Herpes
OUTLINE  What is a sexually transmitted disease? a) What is it? b) How can I get it?  Symptoms. a) Symptoms on women. b) Symptoms in men.  The dangers in sexually transmitted diseases. a) Dangers for men. b) Dangers for women.  Types of herpes. a) Most dangerous type. b) Least dangerous type.  Coping with the situation. ...
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Biology essays / Encephalitis
Encephalitis, literally meaning inflammation of the brain, is a viral disease caused by many viruses that cause the brain to swell. It can also be caused by exposure to harmful chemicals as well as a complication of another disease. The strains of this pathogen that are present in North America include western encephalitis, eastern encephalitis, La Crosse, and St. Louis encephalitis. These ...
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Biology essays / Respiration Lab
Biology Lab Respiration Objectives: 1. How a respirometer works in terms of the gas laws. 2. The general processes of metabolism in living organisms. 3. To calculate the rate of cell respiration from experimental data. 4. To relate gas production to respiration rate. 5. To test the effect of temperature on the rate of cell respiration in germinating seeds in a controlled experiment....
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Biology essays / Human Genome- Telomeres
The human body has been mapped and charted at different levels since before recorded history. The concept of the human genome project allows international scientists to take this mapping to an entirely new level and depth of complexity. Genes that scientists have mapped and broken down to fully understand, can then be manipulated and adjusted, enabling them to see changes that have taken place in ...
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Biology essays / Whooping Chough 
Whooping cough which is also known as Pertussis is caused by infection by the Bordetella Pertussis bacteria. It is a highly contagious bacterial disease that affects the respiratory system and produces spasms of coughing that usually end in a high-pitched whooping sound. In this report I will describe how Pertussis is spread, contracted, what treatments are available for it and the prognosis for ...
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Biology essays / Wastewater Treatment 
The reason for me doing this report is because I could not attend class enough to grasp the concept of Wastewater Treatment. This report is an overview of each stage of the treatment of sewage. I have included a diagram of a typical sewage plant. A) Primary Treatment The wastewater that enters a treatment plant contains debris that might clog or damage the pumps and machinery. The material is remo...
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Biology essays / Vitro Fertilization 
Human in vitro fertilization is selection of embryos for the transfer to the uterus. The eggs are surgically removed from a woman's ovaries and placed in a carefully prepared broth called human tubal fluid. Six hours later, the husband's sperm cells are added. The evidence of fertilization was detected approximately 16 hours later. Later on, the scientists select four embryos that are actively div...
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Biology essays / Transpiration Lab 
Water is essential to plants in many ways. It first provides the major substance for living, to keep cells from shriveling up and dying. The second major function is to keep the plants rigidity. As plant cells become turgid, full of water, the cells expand, filling the extent of their cell walls, which are kept taught with turgor pressure. If the cells lose water, two problems occur. First, the ce...
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Spatial data acquisition and system modeling: notes from the field and the lab. Name of Lecturer: Philip Graniero Department of Lecture: Earth Sciences Date and Time of Lecture: January 13th, 2000 at 4:30pm Purpose of Research Project: The primary purpose of the project is to use model simulations to forecast spatial patterns among various species in the environment. By comparing current situation...
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Biology essays / Sociobiology
In the middle of this century, bot biological and cultural anthropology experiences a major change in theory. In biological anthropology, biological anthropologists adopted an approach which focused on the gene. They saw the human evolution as the process of genetic adaptation to the environment. In the mean time, there were also cultural analogies to evolution. Cultural evolution also followed a ...
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Biology essays / Salmon 
What species would travel over 2000 miles just to have young and then die? It has been said that anyone who has not seen a wild salmon has not seen what a fish should be. Salmon was the common name applied to fish characterized by an elongated body covered with small, rounded scales and a fleshy fin between the dorsal fin and tail. In this paper I will be discussing history of studying salmon, the...
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Biology essays / Pre-Darwinism Views 
November 24, 1859, many people simply believed that species were created by God in their present forms, or that it was possible for organic matter to be spawned from inorganic matter. However, Charles Darwin used these ideas to create his thesis, On the Origin of Species by Means of Natural Selection. The first true theories on evolution arise during the classical Greek period. On a handful of Gre...
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Biology essays / Porcupines 
On this page you will find links to the best porcupine sites on the internet. If you know of a porcupine site that should be listed here, e-mail us the internet address and we'll post it. Porcupine Links Porcupines WNR Magazine - Porcupines Porcupines African Crested Porcupines Porcupines Porcupines; Order: rodent. A porcupine's habitat and range: forests, deserts, and grasslands of North and Sout...
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Biology essays / Platypus 
The platypus, apparently, is a surprisingly deep sleeper. What's more, it spends more of its time in so-called 'REM' sleep than any other mammal. These are the conclusions of a study on sleep in the platypus by Jerry M. Siegel of the Sepulveda Veterans' Affairs Medical Center, North Hills, California and colleagues. Their report appears in a special number of Philosophical Transactions of the Roya...
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Biology essays / Plants 
Plants give us lots of things including oxygen, foods, and medicines. Plants need things like water, light, and air. The amount of daylight affects their growth. Plants also need food, just like we do. The different parts of a plant help it make food. Some plants cross-pollinate. These plants have male (the stamen), or female (the carpel) parts. Wind and water sometimes scatter the pollen, but ins...
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Biology essays / Photosynthesis
Photosynthesis occurs in 3 main stages: energy is captured from sunlight, then it’s converted into chemical energy and stored in organic molecules. Photosystems are light harvesting units of the thylakoid membrane. Each photosystem has four hundred pigment molecules. A photon hits the pigment molecules and travels through each molecule and then reaches the reaction center as shown in figure 1-1....
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Biology essays / Photosynthesis
Photosynthesis is the process by which chlorophyll - containing organisms - such as green plants, algae, and some bacteria - capture energy from light and convert it to chemical energy. For the process of photosynthesis to take place the organism must contain chloroplasts. Chlorophyll is responsible for the green color in plants and is also responsible for their ability to photosynthesize. Photosy...
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Biology essays / PARASITIC CHARACTERISTICS
Imagine going to the doctor for a simple check up. Sure you've had some minor problems- indigestion, lack of energy, weight loss, and a bit of gas- but that's not out of the ordinary....or is it? In most cases you would be correct...but today is your unlucky day. The doctor has just informed you that you have a tapeworm parasite. PARASITIC CHARACTERISTICS By definition, a parasite is an organ...
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Biology essays / Origin Of Species 
Considered one of the most significant, influential, and controversial publications in history, this book, I felt would be interesting to read and learn from. Although his content in this particular book is the subject of much controversy, Darwin's proffesional contributions and accomplishments will remain well known and respected. Therefore, I selected The Origin of Species believing that it woul...
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Biology essays / Newts Of California
In southern California, adult California newts (Taricha torosa)have been found to frequently cannibalize both larvae and egg masses. In turn, for those adult newts that remain in the stream pools after breeding, conspecifics have become one of their main sources of prey in the chaparral stream pools of the Santa Monica Mountains. This study was undertaken to examine whether wildfire-induced sedime...
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Biology essays / Membrane 
The membrane has a double lipid layer through which fat- soluble substances will move, by passive transport or diffusion. The molecules will only move through if they are small enough. There are globular protein regions, which are hydrophilic. These regions allow water and water soluble substances through, but only if they are small enough, for example starch grains are too big. These substances m...
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Biology essays / Marine Biology 
A major source of coastal pollutants, human sewage fouls bays and beaches with both toxic and nontoxic pollutants. Although billions of dollars have been invested in sewage treatment plants to treat wastewater, new and growing coastal communities have increased the amount of discharge into oceans and estuaries. The United States Office of Technology Assessment has identified thirteen hundred major...
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Many millions of years the planet was dominated by lizards great and small. It was a place ruled by the laws of natural selection where the only way to survive was to be able to defend yourself with what you had. It was a constant struggle for food, shelter, and supremacy. It was about survival of the fittest, because only if you were best suited to your environment would you have a chance at livi...
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Biology essays / Living Thing Biology 
Living things make up the world as we know it. Living things are involved in our life constantly, seeing that we are alive. There are five characteristics that are common to all living things. Living things are made up of one or more cells. Each cell is made up of living matter and is separated by a barrier that encloses the cell from its surroundings. However, there are many different kinds of ce...
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In 1830 Mr. Rankin tied a rope around a projection out of a rock face in order to lower himself into Wellington Cave (Horton, 1980). The projection turned out to be the bone of a giant extinct marsupial. It was to be the first discovery of a great range of giant marsupials. Were these animals extinct?? Horton (1980), describes how Leichhart believed that on his journeys to northern Australia he wo...
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Biology essays / Hormones
Hormones are organic substances that are secreted by plants and animals and that function in the regulation of physiological activities and in maintaining homeostasis. They carry out their functions by evoking responses from specific organs or tissues that are adapted to react to minute quantities of them. The classical view of hormones is that they are transmitted to their targets in the blo...
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Biology essays / Evolution 
Evolution, a process of change through time, is what links together the enormous diversity of the living world. A lot of evidence is present that indicates that the earth has had a very long history and that all living things arose in the course of that history from earlier, more simpler forms. In other words, all species have descended from other species and all living things share common ancesto...
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Biology essays / Evolution 
The process by which all living things have developed from primitive life forms through changes occurring over billions of years is evolution. All living things arose through a long history of changes formed by physical and chemical processes that are still taking place. It is possible that all organisms can be traced back to the origin of life from inanimate matter. Paleontology is the most direc...
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Biology essays / Summary Of Evolution
This short report will give you a short summary on evolution and how it my affect us, or even surroundings. Also, how it my affect our food chain and if one thing would die how the other would suffer because of that, for an example if you had snakes and birds and if snakes were to die birds population would drop. Why, because birds feed on snakes. Now a part of the food chain contains somethi...
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Biology essays / Evolution Of Humans 
Human evolution is the biological and cultural development of humans. A human is any member of the species Homo sapiens, meaning “wise man.” Since at least the Upper Paleolithic era, some 40,000 years ago, every human society has devised a creation myth to explain how humans came to be. Creation myths are based on cultural beliefs that have been adopted as a legitimate explanation by a society...
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Biology essays / Evolution And Religion 
Charles Darwin’s introduction of evolution, created the battle between evolution and religion. Still, to this day, the influence of Darwinism has people asking themselves where they came from. God, a higher spirit, or the process of evolution, are the two main choices to pick from. For many years, God was the predominant answer, but after the ideas of Darwin, scientists have taken the task to tr...
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Biology essays / Evolution And Creation 
Ever since the publication of Charles Darwin's The Origin of Species was published, there has been an ongoing debate between science and religion. Scientists have formulated many theories as to the origins of man and to the creation of the earth, whereas religious groups have one main creation theory, based on the "Genesis" story of The Bible. These theories, however, are not the cause o...
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Biology essays / Erwin Chargaff
Erwin Chargaff, born 1905 in Czernowiz, Austria, was a pioneer in biochemistry contributing to the understanding of DNA. He, in 1928, earned his doctoral degree in chemistry at the University of Vienna's Spath's Institute in 1928. Erwin began his career in biochemistry at Yale University, working under Rudolph J. Anderson from 1928 to 1930. His early work included stories of the complex lipids, th...
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For those who follow the rules of good nutrition by eating healthy foods, the rewards can be substantial. But it's also important that you clean and cook your food properly. Because if you don't, certain microorganisms that hitchhike into your stomach can make you feel miserable. E. coli is a bacteria that normally live in the intestines of humans and animals. Although, most strains of this b...
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Dissection of an adult bullfrog's central nervous system (CNS) Experiment consists of the dissection and analyzation of a bullfrog’s nervous system. Dissection consists of the isolation of the CNS consisting of the brain and spinal cord. It also consists of analyzing the nervous tissue under the microscope. Materials needed: frog, scalpel, razor blade, dissecting tray, pins, forceps, scissors, m...
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Biology essays / Dinosaurs 
Dinosaurs: How they became extinct Something happened 65 million years ago, at the end of the Cretaceous period, something so devastating that it altered the course of life on earth. It seems like it happened so sudden, as geologic time goes, that almost all the dinosaurs living on earth disappeared. So how did these dominant creatures just die off? Was it a slow extinction, or did it happen all o...
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Biology essays / Dinosaurs Extinction 
The first question that must be posed when trying to crack the mystery of the mass extinction is to ask, throughout history were there any other occurences of this magnitude? The answer is a resounding yes. Altogether over time there has been about eight mass extinctions to large land dwelling vertebrates. The most recent was about ten thousand years ago, killing most of the giant mammals like mam...
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Biology essays / Digestive System 
On this page you will learn about the Digestive System, which break down foods in to smaller pieces, so they can be used as an energy source for the body. C O N T E N T S : Basic Information The digestive system contain organs for changing food chemically for absorption by body tissues. It is also responsible for processing food , breaking it down into usable protein, minerals, carbohydrates and f...
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Biology essays / Crocodiles 
The crocodiles seem to know a herd of wildebeest has arrived before anyone else does. The most ferocious group of crocodiles is in line along the shore awaiting a chance to capture one of the wildebeest. After a series of weeks, the seasonal river shrinks into a series of pools. This makes it even harder for animals to get something to drink without getting attacked by a crocodile, some of which a...
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Biology essays / Crab Study
Since its itroduction to the New Jersey shore in 1988, the western Pacific shore crab Hemigrapsus sanguineus has spread to inhabit rocky intertidal locations along the Atlantic coast from Massachusetts to North Carolina (McDermott 1998). Many reasons have been proposed to explain the rapid spread of this non-indiginous species. For example, it has been shown that H. sanguineus has longer spawning ...
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Biology essays / Coliform Bacteria
Coliform bacteria are good indicator organisms for the presence of pathogenic bacteria due to their realtionship with these pathogenic bacteria, their relative ease of determination by simple methods, and by their occurrence in large quantities in human feces. The MPN method used in this experiment is one of the prescribed techniques for the determination of these coliform bacteria from the Standa...
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Biology essays / Peter Mitchell
Peter Mitchell (1920 - 1992) : Chemiosmotic Hypothesis Peter Mitchell's 1961 paper introducing the chemiosmotic hypothesis started a revolution which has echoed beyond bioenergetics to all biology, and shaped our understanding of the fundamental mechanisms of biological energy conservation, ion and metabolite transport, bacterial motility, organelle structure and biosynthesis, membrane struct...
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Biology essays / Charles Darwin
Like many students, Charles Darwin was only interested in topics that was interesting to him and although his father was a doctor, Darwin was very uninterested in medicine and he also couldn't stand the sight of surgery. He did eventually get a degree in Theology from Cambridge University, Although Theology was a minor interest to him. What Darwin really liked to do was climb over hills, obser...
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Biology essays / Charles Darwin 
Darwin was born in Shrewsbury, Shropshire. He was the son of Robert Waring Darwin and his wife Susannah; and the grandson of the scientist Erasmus Darwin, and of the potter Josiah Wedgwood. His mother died when he was eight years old, and he was brought up by his sister. He was taught classics at Shrewsbury, then sent to Edinburgh to study medicine, which he hated, and a final attempt at educating...
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Charles Darwin revolutionized biology when he introduced The Origin of Species by Means of Natural Selection in 1859. Although Wallace had also came upon this revelation shortly before Origins was published, Darwin had long been in development of this theory. Wallace amicably relinquished the idea to Darwin, allowing him to become the first pioneer of evolution. Darwin was not driven to publish h...
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Biology essays / Ceriodaphnia 
Anatomy: Ceriodaphnia has six pairs of lobed legs which bear numerous hairs. Their head is bent downwards and is set from the body by a cervical sinus. The head also has two large secondary antennas that are positioned laterally near the posterior margin. (Pennak, 1989) The Ceriodaphnia’s mouth is located near the junction of the head and body. The Ceriodaphnia’s body is covered by a carapace ...
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Biology essays / Cellular Respiration 
Cellular respiration begins with glucose. Glucose is the primary fuel used in glycolysis, the first stage of cellular respiration. This molecule is found in the gel-like substance called cytoplasm that fills the cell. In glycolysis, glucose undergoes phosphorylation by ATP. The ATP is converted back to ADP. The glucose molecule is rearranged and undergoes a second phosphorylation by ATP. The secon...
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Biology essays / Cellular Life 
In this paper I will show my knowledge of many different topics of Cellular Life. I will explain the theory of biogenesis, cell theory, the history of both and how they tie in together. I will also state the scientific method and why it is important to science. Abbi Spallonzani used Scientific method in his biogenesis experiment. Scientific method are some rules or principles used in research and ...
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All living things are made of the same basic building blocks, cells. A human is made of 65 trillion cells. Cells are everywhere, on you skin, in your blood, and even on your tongue. In fact, your blood is clear but red blood cells are what make your blood red. Most living things are made up of many cells but some are made of only one cell, like amebas, paramecium, fungi, protists, monerans, and ba...
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Biology essays / Cell Parts 
Nucleus Cell Wall Cell Membrane Ribosome Mitochondria Vacuoles Nucleolus Endoplasmic Reticulm Lysosomes 5. Have the "cell membrane people" cut the large piece of plastic wrap in half and place each piece on the table. 6. Have the "cytoplasm people" form 2 balls using the plain play-doh or clay. Lay 1 ball on each piece of plastic wrap and press each into a "pancake" a...
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Biology essays / Cell Membrane 
To study the effect of environmental changes in the permeability of living beet root cells. Procedure A: The effect of pH on the cell membrane Materials & Method 1. Cut a beet root into slices approximately 2mm thick. Use a cork bore to cut out thirty-five (35) slices. 2. Place the discs in a 250 mL beaker and rinse thoroughly in cool running tap water. The red pigment collected comes from the...
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Biology essays / Bovine TMB 
Bovine Tuberculosis Mycobacterium bovis (Bovine Tuberculosis) (or cattle Tuberculosis) was first discovered by Columella (Louis Junius Moderatus Columella) which was born in Cadiz, Spain and resided in Northern Italy when he discovered the bovine Tuberculosis in the year 14 A D. In 1882 Robert Koch discovered that the connection between human and animal Tuberculosis actually were established. When...
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Biology essays / Bones
Many people believed that the bone is static and inert, but this idea is incorrect, the organic and mineral components of the bone matrix are continually being recycled and renewed through a process called remodeling. This process goes under way throughout life, as part of normal bone maintenance. Bone remodeling plays a key factor between the activities of osteocytes, osteoblasts, and osteoclasts...
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Biology essays / Black Footed Ferret 
In the past three decades very few endangered species have been restored to viable populations. The black footed ferret (Mustela nigripes) was believed to be the most endangered mammal in the united states. It is a small mink sized carnivore of the Great plains and intermountain basins The ferrets appear to be obligatory predators on the prairie dogs and once occupied a range essentially identical...
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Biology essays / Birds Evolution
Every organism at one time or another has to learn to adapt to a new environment. This is why evolution of organism is needed in order to survive changes to its environment, such as the case of the flightless birds. For one reason or another over a period of 100,000 years the need for wings was unnecessary to their survival. There could be many reasons why the birds evolved to be more adaptable to...
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Biology essays / Biosphere 
The biosphere is part of the earth in which life exists. It is 20 km thick from the bottom of the ocean to the lower atmosphere. It consists of three layers: the lithosphere, which is the land on the surface of the earth; the hydrosphere, which comprises of the water on the earth as well as water vapor in the air; and the atmosphere, which is made up of the air that surrounds the earth. The living...
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Biology essays / Biomass 
Many factors contribute to the diversity of life in an environment. The availability of nutrients and sunlight, along with other factors that play a pivotal role in determining what and how much life an area can sustain. While studying the Second Law of Thermodynamics, it came to my attention that the classical pyramid shape of the producer, C1, C2, C3, biomass pyramid did little to take into acco...
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Biology essays / Biology Of Earth
Sometime during our lives, we've questioned ourselves at one point just how long has the earth existed and how did life begin? Our Biology book written by: Solomon, Berg, and Martin, shows theories that has taught us that earth is approximately 4.6 billion years old, and the earliest pieces of life form found was dated back to approximately 3.8 billion years old. This only leaves a time space of 8...
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Biology essays / Biology Molecule 
Unit 1 -man is high 50’s to 60% water -distribution in body divided into 3 compartments: 1) intracellular - 28 litres 2) intercellular/interstitial fluid - 11 litres - 80% 3) blood plasma - 3 litres - 20% -women contain less water than men -organisms can contain 60-80% water -bacteria have lots of water -fat cells have little -water’s properties result from its structure and molecular interact...
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Biology essays / Bioethics 
As our technology continues to advance, new breakthroughs in medicine are discovered. With these new developments serious ethical and moral questions arise. Advancements in genetic engineering, reproductive technologies, cloning, organ transplanting, and human experimentation are all causes of concern. The Human Genome Project, an incredible scientific undertaking determined to produce a map of th...
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Biology essays / Bacteria Reproduction 
Bacteria are microscopic singular celled organisms grouped in the prokaryote kingdom. They have a seemingly simple internal structure but that is not so the internal structure of a bacterium is quite complicated . Bacterial growth is generally studied in cell cultures by “visible count” estimation which shows an apparent growth curve. (Stephenson 50) The growth curve shows the stages of bacter...
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Biology essays / Aquaculture
Aquaculture is the farming of aquatic organisms in fresh, or salt water. A wide variety of aquatic organisms are produced through aquaculture, including fish, crustaceans, mollusks, algae, and aquatic plants. Unlike capture fisheries, aquaculture requires deliberate human intervention in the organisms' productivity and results in yields that exceed those from the natural environment alone. Stockin...
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Biology essays / Ants 
There are more then 10,000 species of ants and they all share the same common traits. The traits that they share are three body sections. The body sections are the head, thorax, and abdomen. The head contains a relatively large brain. It also had the eyes, antennae, and the mandibles (which are shaped differently depending on the ant). The antennae are what an ant uses to smell, touch, taste, and ...
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Biology essays / Ants 
Ants are social insects that live in colonies being some of the most successful of insects. Ant colonies include one or more queens, workers, eggs, larvae and pupae. The worker ants maintain their developed structures known as "nests". Nests protect the ants against their enemies, some protection against extremes of weather, and are often placed close to water and food sources. Some ant ...
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Biology essays / The Sea Anemones
The sea anemones that were collected for the “Clone Specific Segregation in the Sea Anemone Anthopleura elegantissima” experiment were collected by Lisbeth Francis in Pacific Grove, California (Biological Bulletin 1973, 144; 64-72). The topic of Francis’s report is the particularity of the constant anemone-free areas dividing contiguous accumulations of these anemones and the connection...
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My cell is the animal cell It really depends on which cell you are talking about - different cells do different things. Such as skin cells. They form a barrier on the outside of the body which protects the organs and tissues inside. It stops them getting damaged by bumps and knocks and also prevents bacteria and viruses from getting into your body. The cells structure, contains the Cell Membr...
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Abstract This is an experiment on how chemical stress effects cell membranes, specifically the tonoplast of Beta vulgaris taproot cells. This experiment involved the treatment of the aforesaid cells with different concentrations of an acetone solution, and testing the resulting solution for absorbance of light by betacyanine, using a spectrophotometer. It had been hypothesized that the higher...
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Biology essays / Hemophilia
Hemophilia Can you imagine being born not able to play sports? Or can you imagine what it would be like if you had to be injected with blood regularly just to stay alive? For more than 15,000 Americans, this way of life is a reality. Hemophilia is an inherited disease in which one or more blood-clotting proteins called antihemophilic globulin, or factor VIII are defective. This is what th...
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Biology essays / DNA
The "thread of life", is deoxyribonucleic acid, otherwise known as DNA. It is the spiral shaped molecule found in the nucleus of cells. Scientists have known since 1952 that DNA is the basic substance of heredity. This was hypothesized, and later confirmed by James D. Watson and Francis Crick. They also know that it acts like a biological computer program over 3 billion bits long that "spells" ...
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A Month in The Life of A Gamete My name is RAMBO. I and my millions of brothers and sister gametes have been confined in our prison like holding cells called testes. Each day many more gametes are produced and held captive inside the testes which hang in a storage sac called the scrotum. WHAT'S HAPPENING IN HERE? Everything is moving. Back and forth this way, that way. Has everyone'...
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Biology essays / Jane Goodall
Jane Goodall was born in London, England, on April 3,1934, and grew up in Bournemouth on the southern coast of England. On her second birthday, her father bought her a stuffed, life-like toy chimpanzee named Jubilee in honor of a baby chimp born at the London Zoo. Her father's friends warned him that such a gift would cause nightmares. However, Jane loved the toy, and to this day Jubilee sits on a...
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Biology essays / The Human Genome Project
1 Introduction: The Human Genome Project is possibly the most important project in the world currently. Several companies and governments are involved with this project. The project has many goals but the main general goal is: "to construct a detailed genetic and physical map of the human Genome, to determine the complete nucleotide sequence of human DNA, to localize the estimated 50,000-100,000...
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Biology essays / Ferrets
There are many different kinds of ferrets. There are three main ones: The black-footed, common, and domestic ferrets. There are many other breeds, formed by different kinds mating with each other. There is the polecat-ferret, black-common, and domestic-wild polecat breeds and many others. The gestation period of the common ferret is 42 days. This means that 42 days after the ferrets mate, a y...
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Biology essays / Red Blood Cell Report
A red blood cell can start in the big left toe of a person and travel all around the body, ending up in the same place it started. During the entire transportation process, the Red Blood Cells transport oxygen from the lungs to the body tissues and carbon dioxode from the body tissues to the lungs. Red blood cells can be found in every part of the body because they are so widely spread out. Sta...
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Biology essays / Hepatitis
Hepatitis A B C D E Hepatitis' target for each variation is the liver. Each virus differs greatly in its structure, mode of replication, course of disease, and mode of transmission. Of the hepatitis virus' most common are the A and B viruses. Each infects and damages the liver. Icteric symptoms are jaundice and release of liver enzymes, and is readily spread before even becoming symptomatic....
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Bicarbonate: A good buffer for blood Most carbon dioxide generated during metabolism is transported in the form of bicarbonate ions, which result from the dissociation of carbonic acid formed in the red blood cells from the chemical union of carbon dioxide and water. Hydrogen ions from the dissociation are bound to hemoglobin and other proteins, serving to buffer the blood. The entire process i...
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Biology essays / Evolution
For years scientists have been studying evolution and common decent. From Darwin to the modern day scientists humans have been trying to find out about how the world has evolved. Even with modern day technology scientists have trouble finding out how evolution works. Common descent can be proved in multiple ways. Scientists use fossils, embryology, comparative anatomy, biogeography, and bioch...
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Biology essays / The Double Helix
This is my report about the discovery of the structure of deoxyribose nucleic acid (DNA) as told by James Watson. Watson and another scientist named Francis Crick discovered the structure of this hereditary molecule. These two scientists discovered that DNA was much more important than originally thought by most of the scientists. Watson and Crick used the findings of other scientists wi...
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Biology essays / Death Of The Dinosaurs
Could an exploding star have been responsible for the death of the dinosaurs? This idea has become popular again as an explanation for the disappearance of the dinosaurs. An exploding star can blast material enormous distances into space. If this material reached Earth's atmosphere, changes may have occurred that were harmful to life. We call an exploding star a supernova. Nova is the Latin...
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Biology essays / Down Syndrome
Down Syndrome Down Syndrome is caused by a trisomy of the 21st chromosome, which means that there are three of chromosome 21 instead of 2. Symptoms of the disorder include: mental retardation, abnormal creases in the palm, a flat face, sparse and strait hair and short stature. People with Down syndrome are also at a high risk for cardiac anomalies, leukemia, cataracts and digestive blockage...
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Biology essays / Atavism And Genetics
Atavism According to WebsterOs dictionary atavism, from the Latin atavus meaning ancestor, is OA reoccurrence in an organism or in any of its parts a form typical of ancestry more remote then the parents usually due to genetic recombinations. A throwback.O This means that a person with an atavistic trait, or an atavistic deformity, exhibits a trait that was commonly found in our ancestors b...
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Biology essays / Evolutions History
1/29/99 Biology 2 Period 2 Charles Darwin The "un"Scientific Theory of Evolution and the Manufactured Evidenced used Drunken Scientists to Support this Exaggerated Theory. Preface: Teaching the Theory of Evolution is like teaching the Bible in a public school. It's biased and unsupported and is banned by the constitution. I attended Catholic schools for four years. ...
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Biology essays / Dinosaurs
Dinosaurs Dinosaur is the name of large extinct reptiles of the Mesozoic Era, during which they were the dominant land animals on Earth. The term was proposed as a formal zoologic name in 1842 by the British anatomist Sir Richard Owen, in reference to large fossil bones unearthed in southern England. The various kinds of dinosaurs are classified in two formal categories, the orders...
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Biology essays / Cloning
Cloning Cloning opens many doors of opportunities in the agricultural aspect of the United States of America. It has already been a major factor in saving the lives of many humans. I feel the society as a whole can not and should not degrade this scientifical finding. I feel that human cloning should not be done and that this subject raises too many ethical questions. I would lik...
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--Characters: Theseus-leader of the basement roach colony Egeus-father of Hermia Lysander-in love with Hermia Demetrius-in love with Hermia, despises Helena Hermia-daughter of Egeus, in love with Lysander Helena-in love with Demetrius Hyppolotia-betrothed to Theseus Oberon-King of the Fairies Titania-Queen of the Fairies Puck/Robin Goodfellow-attendant to Oberon Jimmy Jo Bob-child of th...
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Biology essays / Surface Currents
In the world's oceans, the surface currents move the oceans' surface water. This occurs in the Atlantic, Pacific and Indian Oceans. From a diagram of these surface currents, a number of conclusions can be made about the general patterns of the surface currents. One of these conclusions includes that they go clockwise in the Northern Hemisphere and counter-clockwise in the Southern Hemisphere. The ...

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