Biology Essays Examples For College & High School Students in PDF

10822 total results

The Role and Evolution of Lighting Throughout History (2254 words, 4 pages)

Have you wondered why streetlights are yellow, or why the year 2000 cars have brighter headlights and they are a different color? Have you ever wondered how the indiglo light on your watch works, or why it glows green and not white? And did you know that same indiglo light ... Read More

An Understanding of the Laser (1733 words, 3 pages)

Did you know that some laser beams are small enough and powerful enough to drill two hundred holes on a spot as tiny as the head of a pin?The first major advancement in laser development came in 1954. This was the year that Charles H. Townes, an American physicist, created ... Read More

A Look at Crop Irrigation Using Seawater (849 words, 1 pages)

Brown J. Jed, Glenn Edward P., and OLeary James W. 1998. Irrigating Crops with Seawater. Scientific American. talks about the global problem of finding enough water and land for the worlds population to survive. An estimated 494.2 million acres of cropland is needed just to feed the tropics and subtropics ... Read More

The Division of the Positive and Negative Ions After Ionic Solids Dissolve (539 words, 1 pages)

When ionic solids dissolve, they divide to give their positive and negative ions that make up the solids. These ions become hydrates and have the same relative proportions when in solution and when solid. The more the solid dissolves, the more the ions concentration increases. This increase and build-up allows ... Read More

The Involvement of K+ in Leaf Movements During Suntracking (2315 words, 7 pages)

Involvement of K in Leaf Movements During SuntrackingIntroductionMany plants orient their leaves in response to directional light signals.Heliotropic movements, or movements that are affected by the sun, are commonamong plants belonging to the families Malvaceae, Fabaceae, Nyctaginaceae, andOxalidaceae. The leaves of many plants, including Crotalaria pallida, exhibitdiaheliotropic movement. C. pallida ... Read More

An Analysis of What is in Each Test-Tube (430 words, 1 pages)

What is in each test-tube? What proof do I have of this?Test-tube A Test-tube A had water in it. I can base this on the fact that it was a neutral, reacting neither to red or blue litmus paper. Phenolphthalein also did not react to this substance. The pH value ... Read More

An Analysis of Hydroponics, Growing Plants Without Soil (2428 words, 4 pages)

Hydroponics Growing Without SoilThe science of growing plants without soil has been known and used for more than one-hundred years. The word hydroponics, however, is comparatively new. Dr. W.E. Gericke is usually given credit for coining the word, which translated from Greek, means working water. The famous hanging gardens of ... Read More

A Description of Hurricanes Most Powerful Storm (1228 words, 2 pages)

A hurricane is easily the most powerful storm that mother-nature can throw at us. Every year people who live on the coasts fight hurricanes with no dismay. A hurricane is simply too strong. Their winds reach speeds of 75 mph. The winds around the eye wall can reach 130 to ... Read More

The Discovery and Advancements in the Science of the Double-Helical Structure of DNA (1657 words, 6 pages)

It all started back in 1953 with two men by the names ofJames D. Watson and Francis Crick when they discovered thedouble-helical structure of DNA. Little did they know they wereopening the door to the creation of a perfect world. In 1986,the Human Genome Project, led up by the National ... Read More

The Use of Genetic Testing in Large Corporation (2403 words, 5 pages)

Thesis Large corporations, such as insurance companies, and governments are looking to save money on future policyholders through the use of genetic testing.General information on the Time of discussion leading up to implementationWho was involvedWhere does the funding come fromInsurance Companies and discrimination Discrimination against unborn children Genetic testing for ... Read More

The Positive Impact of Human Cloning in the Modern World (1294 words, 2 pages)

And the Lord God formed man of the dust of the ground, and breathed into his nostrilsthe breath of life and man became a livingsoul . . . and He took one of his ribs, and closed up the flesh instead thereof and the rib, which the Lord God had ... Read More

An Analysis of Cloning by Dr. Ian Wilmot a Scottish Scientist Who Completed a Clone,Dolly (599 words, 1 pages)

Early in 1997 Dr. Ian Wilmont a Scottish scientist revealed to the world that he had completed a clone of an adult sheep named Dolly. With this huge step in science the world realized that cloning was no longer the plot of a science fiction movie but rather a realistic ... Read More

An Analysis of the Hubble Goes To The Limit in Search Of Farthest Galaxies (522 words, 1 pages)

Hubble Goes To The Limit In Search Of Farthest GalaxiesStretching the vision of NASA's Telescope farther across space and further back into time than ever before, astronomers have peered into a previously unseen realm of the universe. A "long exposure" infrared image taken with Hubbles Near Infrared Camera and Multi-Object ... Read More

A Review of the Passive and Active Transport in Cell Membrane (886 words, 3 pages)

Homeostasis is essential to the cells survival. The cell membrane isresponsible for homeostasis. The membrane has a selective permeabilitywhich means what moves in and out of the cell is regulated. Aminoacids, sugars, oxygen, sodium, and potassium are examples of substancesthat enter the cell. Waste products and carbon dioxide are removed ... Read More

A Research on Mountains (373 words, 1 pages)

Mountains are formed over long periods of time by forces of the earth. Mountains just dont appear in any place. Most are formed when plates, or huge pieces of the Earths crust, pull and push against each other. Greatmountain ranges are formed by the movement of tectonic plates. Convectioncurrents deep ... Read More

A Study of F-16 and Its History (1077 words, 2 pages)

The first F-16 was developed in 1974. They wanted a lightweight fighter that wouldnt cost as much as the fighters they had at the time. They also needed a way to have a bomber without going out and building another bomber which would cost millions more. So they decided to ... Read More

A Study of Cell Membrane (414 words, 1 pages)

In the early stages of the twentieth century, little was known about cell membranes. Until the early 1950s, the biological cell membrane was rarely mentioned in scientific literature. It was recognised that something was probably there, but hardly anything about it was known. Considering the lack of technical equipment available ... Read More

An Analysis of the Heroic Model (673 words, 1 pages)

The heroic model of science is one of the most influential phenomena in history. This surge of value-free knowledge, filled with realism, bold justification, absolute truth and complete objectivity, changed the way in which the world was perceived and how the future would be viewed. The heroic model changed the ... Read More

A Study of Water (2271 words, 4 pages)

Water is a tasteless odorless vital element in which 90 percent of all organisms depend on to survive. It is one of the best-known ionizing agents and, is frequently called the universal solvent. Water combines with certain salts to form hydrates. It reacts with metal oxides to form acids and ... Read More

A Study of Gravity (1260 words, 2 pages)

is really an unknown force. We can define it as a field of influence, and that it effects the entire existence of the universe. Some people think that consists of particles called gravitons, which travel at the speed of light. The only thing we do know is how operates in ... Read More

An Overview of Gold (2576 words, 4 pages)

Gold's great virtues of malleability, ductility, reflectivity, resistance to corrosion and unparalleled ability as a thermal and electrical conductor mean it is used in a wide variety of industrial applications consuming close to 300 tonnes annually.Gold (Au, from Latin "Aurum" (World Book Dictionary) is the most non-reactive of all metals ... Read More

A Study of Gold (738 words, 2 pages)

Gold, nothing can compare to this precious metal. A symbol of wealth and prosperity, it has been a value for explorers and adventurers and a lure for conquerors. Today it is vital to commerce and finance popular in ornamentation, and increasing importance in technology.The nature of gold is diverse. The ... Read More

An Essay on the Human Population (4689 words, 5 pages)

By Sean GriffithsPhysics 200The human population is currently using up its fossil fuel supplies at staggering rates. Before long we will be forced to turn somewhere else for energy. There are many possibilities such as hydroelectric energy, nuclear energy, wind energy, solar energy and to name a few. Each one ... Read More

A Research on Mars: The Red Planet (1329 words, 2 pages)

by Luke JustisMars is the planet that is the closest geologically to our own. Still we know little about the planet. All the information that we have is from what we see. We can speculate about the geology of the planet but we will never know for sure what the ... Read More

An Analysis of the Effects of Cloning (1915 words, 4 pages)

The process of cloning is the process of using the genes of a being to create another being genetically identical to it. Cloning technology has been called the "forbidden fruit of biology" (Begley 54). For years, scientists have been trying to perfect the cloning technique. In Scotland, scientists at the ... Read More

An Essay on The Human Genome Project (1467 words, 2 pages)

Adam and Eve were doomed for trying to be like god, this is the same damnation mankind is headed to. Everyones dream is to have absolute power and control of everything. The and DNA engineering gives man the ability to create life and customize life to his specific needs of ... Read More

A Study of Science and Genetic Engineering (3062 words, 5 pages)

Science is a creature that continues to evolve at a much higher rate than the beings that gave it birth. The transformation time from tree-shrew, to ape, to human far exceeds the time from an analytical engine, to a calculator, to a computer. However, science, in the past, has always ... Read More

An Understanding of Genetic Engineering (1721 words, 3 pages)

Genetic Engineering, the process of editing the genetic structure of a living organism, is most likely the most power science in existence. With this technology one can literally create life, change life, and formulate life to service the creator. Genetic Engineering is the most useful, powerful, and interesting science in ... Read More

The Horrors of Genetic Engineering (1127 words, 2 pages)

Just as the success of a corporate body in making money need not set the human condition ahead, neither does every scientific advance automatically make our lives more meaningful (Wald 45). These words were spoken by a Nobel Prize winning biologist and Harvard professor, George Wald, in a lecture given ... Read More

A Study of Genetic Engineering (1140 words, 2 pages)

and the betterment of our worldWhat exactly is genetic engineering? A simple definition of genetic engineering is the ability to isolate DNA pieces that contain selected genes of other species(Muench 238). Genetic engineering has been the upcoming field of biology since the early nineteen seventies. The prosperous field has benefits ... Read More

Biology Essay Examples