Biology Essays Examples For College & High School Students in PDF

10822 total results

An Introduction to the Comparison of the Big Bang and Steady State Theory (1283 words, 2 pages)

It is always a mystery about how the universe began, whether if and when it will end. Astronomers construct hypotheses called cosmological models that try to find the answer. There are two types of models Big Bang and Steady State. However, through many observational evidences, the Big Bang theory can ... Read More

A Literary Analysis of the Art of Teaching Science by Lewis Thomas (755 words, 1 pages)

In the essay, The Art of Teaching Science, by Lewis Thomas, he talks about our failures in the way we teach science in our education system. Lewis believes that schools have gone about teaching science in the entirely wrong way and that they need to go about it in a ... Read More

An Introduction to the Analysis of Tetrahydrocannabinol THC (483 words, 1 pages)

Tetrahydrocannabinol (THC) is the active chemical in cannabis and is one of the oldest hallucinogenic drugs known. There is evidence that cannabis extracts were used by the Chinese as a herbal remedy since the first century AD. Cannabis comes from the flowering tops and leaves of the hemp plant, Cannabis ... Read More

An Introduction to the Analysis of Neurotransmitters (1029 words, 2 pages)

Neurotransmitters are chemicals that communicate between nerves. In some ways, neurons are like computers they receive messages, process those messages, and send out the results as new messages to other cells. In the case of neurons, messages consist of chemicals that interact with the outer surface of the cell membrane. ... Read More

An Introduction to the Importance of Stem Cells (632 words, 1 pages)

After a typical delivery the umbilical cord and the blood within it is discarded. Now researchers have discovered that this blood contains valuable stem cells which can be used in the treatment of several blood disorders. Stem cells are simply undeveloped cells that develop into platelets or red and white ... Read More

An Introduction to the Importance of Stem Cells (373 words, 1 pages)

Stem cells are primitive cells found in embryos, fetuses, and recently adults that can grow into 210 types of cells in the body. James A. Thomson, an embryologist at the University of Wisconsin, and John D. Gearhart of the Johns Hopkins University School of Medicine announced on Thursday, November 8 ... Read More

An Introduction to the Importance of Stem Cells (3043 words, 6 pages)

Stem Cell Research and The Government Is stem cell research wrong? This is a question that most of society faces daily. Until several years ago many people had never heard of stem cells, much less knew what they did. Today though information regarding stem cells and how they function is ... Read More

An Introduction to the Importance of Stem Cells (453 words, 1 pages)

Stem cell research, recently a huge issue of debate among Congress, lobby groups, and the general American public is perhaps the single most important decision to be made right now regarding medical research. There are two main groups with differing viewpoints, the conserve life at any cost faction and the ... Read More

An Introduction to the Definition of Matter (884 words, 4 pages)

The definition of matter is something that takes up space and has a mass. Ithas to have inertia and weight when gravity is present. Matter is commonlyknown to exist in three states solid, liquid, and gas. Scientists also acknowledgetwo other states plasma and Bose-Einstein condensate (A). The general propertiesof matter ... Read More

An Introduction to the History of Sputnik (381 words, 1 pages)

Forty-five years ago, a shiny aluminum sphere made its way into Earth orbit, stunning Americans and changing history. This Earth-orbiting satellite, weighing a mere 184 pounds, was called Sputnik. It all began in 1952, when it was determined that the period from July 1, 1957 to December 31, 1958 would ... Read More

An Introduction to the Analysis of Geology (1014 words, 2 pages)

Geology, the largest supporter of evolution, actually gives the theory the biggest problem. Many theories of rock formations and even the fossil record, which are based on the evolutionary model, are contradictions to the theory that they are supposed to support. The field of geology is not limited to the ... Read More

An Introduction to the History of the Simple Machines (668 words, 1 pages)

Simple machines can be used to make work easier and faster. Compound machines are basically simple machines placed together to work together. Work is force acting on an object that moves it a distance (WFd). A simple machine must have some force applied to it to do work. Simple machines ... Read More

An Introduction to the Nature of Saturn (1380 words, 3 pages)

The sixth planet in the solar system that displays its stunning array of rings makes Saturn one of the most interesting planets in the solar system. A very easy planet to pick out in the sky on account of it being one of the brightest lights in the sky, it ... Read More

An Introduction to the Analysis of Resistors (695 words, 2 pages)

This paper will give you a better understanding of resistors and what they are. They are used all around us in our day to day lives in the electrical world. They are used in every house, automobile, school and piece of equipment that has electricity.Resistors are electrical devices that have ... Read More

An Introduction to the Importance of Electric Power (2291 words, 3 pages)

Electric power is a fact of life in America in the world today. Ever since electric power was introduced society has thought nothing of the harmful effects of electromagnetic fields or electricity as long as they had it at their disposal. I will not be able to answer the question ... Read More

An Introduction to the Analysis of DNA (679 words, 2 pages)

Tiny molecules strung in long repeating chains form polymers. Why should you care? Well for one thing, your body is made of them. DNA, the genetic blueprint that defines people and other living things, is a polymer. So are the proteins and starches in the foods we eat, the wheels ... Read More

An Introduction to the Use of Plastics (1550 words, 4 pages)

The use of plastics is forever increasing from the days in which it was first invented. Not only does plastic now replace materials such as metal, glass, ceramics, wood, and paper in a wide variety of ways, there are new roles which only plastic can fill. Plastics are polymers. These ... Read More

An Introduction to the Plant Pigments and Photosynthesis (978 words, 2 pages)

Plant Pigments and Photosynthesis Lab ReportPhotosynthesis, in a nutshell, is the process that allows plants to capture the suns energy and store it as chemical potential energy in the bonds of carbohydrate molecules. There are two processes in which this takes place, called Photosystems. In Photosystem I, light from the ... Read More

An Introduction to the Identify the Composition of Thirteen Objects (696 words, 2 pages)

To identify the composition of thirteen objectsBy measuring the mass and volume of thirteen objects and plotting on a graph the four slopes of the lines you can determine the four compositions.It was determined that the composition of the objects were Lucite, Magnesium, Brass, and Aluminum.1. The four volumes of ... Read More

An Introduction to the Analysis of Piezoelectricity (1247 words, 2 pages)

Pierre and Jacques Curie initially discovered the piezoelectric effect in 1880. The two scientists observed that when pressure was exerted on a small piece of quartz, it produced an electric potential. It was later found that when an electric potential was applied (via an electric field) to the same material, ... Read More

An Introduction to the Physics of Percussion Instrument (975 words, 2 pages)

The Physics of Percussion InstrumentsAll the time during your life, everyday, somewhere, you will hear some sort of percussion. Whether it is the music on a commercial, the music on the radio, or you might catch yourself tapping on your desk. Percussion however is much more than just drumming, tapping, ... Read More

An Introduction to the Trematodes Fasciola Hepatica (395 words, 1 pages)

The trematodes Fasciola hepatica (the sheep liver fluke) and Fasciola gigantica, parasites of herbivores that can infect humans accidentally. The adult flukes (Fasciola hepatica up to 30 mm by 13 mm F. gigantica up to 75 mm) reside in the large biliary ducts of the mammalian host. Immature eggs are ... Read More

An Introduction to the Analysis of the Pancreas (265 words, 1 pages)

The pancreas is a large, elongated gland behind the stomach, which plays a key role in digestion. Pancreatic cancer has been know as a "silent" disease, because it usually does not cause symptoms early on. The cancer may grow for sometime before it causes pressure in the abdomen, or pain ... Read More

An Introduction to the Earths Atmosphere and Its Layers (3866 words, 16 pages)

Our Earths atmosphere is divided into several layers. The lowest region, thetroposphere, extends from the Earths surface up to 10 kilometers in altitude. All humanactivity occurs in the troposphere. The next layer, the stratosphere, continues from theend of the troposphere to about 50km. Most air traffic occurs in the stratosphere. ... Read More

An Introduction to the Analysis of Oxycodones’ Brand (715 words, 1 pages)

To begin with, Oxycodones' brand names include M-Oxy, OxyContin, Oxyir, Percolone, and Roxicodone. Oxycodone is in a class of drugs called narcotic analgesics. It simply relieves moderate to severe pain. It is a drug meant to be swallowed whole, delivering pain relief for up to 12 hours. Oxycodone is habit ... Read More

An Analysis of the Topic of the Solutions and the Higher Concetration (965 words, 2 pages)

In principle, just about all substances diffuse, with a variation of rates. Diffusion is the process in which the particles are uniformly distributed or at equilibrium, and the process of random movement toward a state of equilibrium. In diffusion, motions are uniquely at random can produce a net mevement-always a ... Read More

An Introduction to the Importance of Organ Transplants (1486 words, 6 pages)

Being assigned the subject, organ transplants, I realized very quickly that thiscould cover a broad area. Does this mean animal to human transplants, (there's no way Iam going to get into the rights of animals on this one) artificial organ transplants, livingdonor transplants or partial transplants, such as bone marrow ... Read More

An Introduction to the Importance of Organ Transplants (2400 words, 4 pages)

The act of saving lives has reached a remarkable goal. With the process of organ donations, life can still go on for the unfortunate people with malfunctioning organs. Every one should be an organ donor because each day approximately sixty people out of one hundred receive an organ transplant, but ... Read More

An Interpretive Ethic for Genetic Decision Making (453 words, 1 pages)

An Interpretive Ethic for Genetic Decision makingIn the Newsweek article, Making Responsible Decisions, author Mary Terrell White debates the issue of genetic counseling and its affect on the clients ability to make thoughtful and good decisions. Due to the frequency of medical advancements in technology, many new horizons are unfolding ... Read More

An Introduction to the Analysis of Nuclear Energy (967 words, 2 pages)

Nuclear energy the energy stored in the nucleus of an atom and released through fission, fusion, or radioactivity. In these processes a small amount of mass is converted to enormous amounts of energy according to the relationship E mc2, where E is energy, m is mass, and c is the ... Read More

Biology Essay Examples