Biology Essays Examples For College & High School Students in PDF

10822 total results

A Description of the Advantages and Disadvantages of Using Pesticide (985 words, 3 pages)

Pesticide Pesticides are chemicals that make our produce perfect, and our yards free ofpests. However, this perfection comes at a price to many different people.Pesticides are poisons with the sole purpose of killing. They are intended tokill weeds, insects and fungus. There are three types of pesticides calledherbicides, insecticides, and ... Read More

The History of the Periodic Table (351 words, 2 pages)

Periodic TablePeriodic TableFirst noticed by Greek people in about 400BC. They used the wordselement, and atom to describe the differences and smallest parts ofmatter. Those ideas lasted for 2000 years. Elements were Earth, Fire, Air,and Water that explained world stuff easily came and went.In the 1600s Boyle, an experimenter, influenced ... Read More

An Analysis of Perceptual Illusions (1266 words, 2 pages)

Perceptual IllusionsMany of us take our vision for granted. We seem to accurately use our properties of vision with little effort or thinking at all. At times we often see things with our eyes and wonder how can this be possible? Physicist Richard Feyman once wrote, Its quite wonderful that ... Read More

An Analysis of Profit and Envcironment (671 words, 2 pages)

PROFIT OR ENVIRONMENT? The petroleum industry is no different than any other business. It exist to make money and will pursue any means to profit. Americans and other people of the world don't realize how much of an impact the petroleum industry has on the world economy. Most of us ... Read More

A Study of Polymers (415 words, 1 pages)

POLYMERS Polymers are large molecules composed of smaller molecules called monomers. Monomers are produced and either grow together or are assembled to produce a single polymer. There are synthetic and natural polymers. Some examples of natural polymers would be wood, starches, fingernails, and hair. Synthetic polymers are usually referred to ... Read More

A Study of the Ozone Layer (1876 words, 5 pages)

Ozone Layer Some scientists have proclaimed that the human race is slowly depleting thelayer of ozone which protects us from ultra violet light. In reality, humanshave very little control of the world in which we live. Scientific evidence hasshown that there is very little depletion in the ozone layer and ... Read More

A Study of Orion (739 words, 2 pages)

Orion "Down fell the red skin of the lion Into the river at his feet. His mightyclub no longer beat The forehead of the bull but he Reeled as of yore besidethe sea, When blinded by Oenopion He sought the blacksmith at his forge, Andclimbing up the narrow gorge, Fixed ... Read More

An Essay on Organic Chemistry (1197 words, 3 pages)

Organic ChemistryOrganic compounds are covalently bonded compounds containing carbon, excluding carbonates and oxides. Carbon atoms are unique because of their ability to bond by catenation, which is forming long chains and rings from the covalent binding of an element to itself. Besides bonding with itself, carbon atoms are able to ... Read More

A Study of the Oceans from Space (1183 words, 4 pages)

Oceanography From Space At first thought, studying the oceans from space seems to be a bizarre idea.Space observation helps oceanographers do research with manned and unmannedspace systems. The space systems can be satellites andor space shuttles thatobserve various features of the ocean such as sea-surface winds, sea-surfacetemperatures, waves, ocean currents, ... Read More

An Analysis of Nutrients (424 words, 2 pages)

Nutrients Lab 1LAB 1NutrientsIntroductionIn the introduction for Nutrients Lab 1 I will be discussing the different items I will be using for this lab. Fat or lard is a molecule that is high in cholesterol. Starch is a complex carbohydrate. Protein means a group of molecules made up of chains ... Read More

An Essay on Nuclear Bombs (1087 words, 2 pages)

Nuclear BombsTHE FIRST DESIGN of a nuclear weapon in the United States was a gun-barrel assembly, in which two sub-critical masses of very highly enriched uranium (HEU), were brought together by normal artillery propellant in a short gun barrel into a single over-critical configuration. (Criticality defines the minimum amount of ... Read More

A Study of Non-Hodgkin’s Lymphoma (299 words, 1 pages)

Non-Hodgkin's Lymphoma Non-Hodgkin's lymphoma is a disease in which cancer calls are found in the lymphsystem. The lymph system fights infections found in the body. People with AIDStend to pick up this disease. There are no specific early detections for this disease. Every body is different, and this disease is ... Read More

An Overview of Five Popular Nobel Prize Winners (1484 words, 5 pages)

Nobel Prize Winners The theories of these five men John C. Harsanyi, John Nash, Reinhard Selten,Robert W. Fogel, and Douglass C. North, made an abundant progress in theEconomic Sciences in America and the economy. For these great accomplishments,these five were awarded the Noble Peace Prize in Economic Sciences in1994(Harsanyi, Nash, ... Read More

The Role and Significance of Newtonian Absolute Space in Physics (1653 words, 3 pages)

Newtonian Absolute SpaceWhen Newton proposed his axioms describing fundamental laws of physics, he insisted on the necessity of absolute space to a completed theory of mechanics. Absolute space can be best described as not-relationally-dependent space. Newton purports that there is something more to space than just being a vessel to ... Read More

A Look at the Various Types of Neutrinos and Gamma Rays (867 words, 2 pages)

Neutrinos and Gamma Rays Emission of a beta particle produces an energy change in the nucleus of an atom. The energy change that is observed, however, does not add up to satisfy the Law of Conservation of energy. The conservation law can be balanced if another particle, called the neutrino ... Read More

The Story of My Mission to Neptune (486 words, 1 pages)

NeptuneAndrea RhodesP.1 11501NEPTUNEI have been selected as one of five people to go on a mission to Neptune we are to attempt to gather rock samples from two moons, Triton and the very irregular shaped moon Proteus. We also must gather samples from, the rings of Neptune and we need ... Read More

The Question of Whether Nanotechnology Is Immortality or Total Annihilation (1334 words, 4 pages)

NanotechnologyCurtis Shephard Nanotechnology Immortality or total annihilation? Technology has evolved from ideals once seen as unbelievable to common everyday instruments. Computers that used to occupy an entire room are now the size of notebooks. The human race has always pushed for technological advances working at the most efficient level, perhaps, ... Read More

An Analysis of Motorcycle (405 words, 2 pages)

Motorcycles In 1868 Ernest and Pierre Michaux of France, experimented with a steam-poweredbicycle. This engine was to big and heavy to really do much other than be a goodidea. In 1868, steam powered motors was all that they had. The idea of amotor-powered bicycle had not come around again until ... Read More

The Background Information of the Natural Satellite of Earth, The Moon (1400 words, 4 pages)

Moon The Moon is the only natural satellite of Earth orbit 384,400 km from Earthdiameter 3476 km mass 7.35e22 kg Called Luna by the Romans, Selene and Artemisby the Greeks, and many other names in other mythologies. The Moon, of course,has been known since prehistoric times. It is the second ... Read More

An Analysis of Modern Technology (1563 words, 5 pages)

Modern Technology In an era where human progress is soaring at a dizzying rate, society must adaptits technology to solve current world issues. In a world where the Internet,cell phones and notebook computers are becoming a necessity for everyday living,we often forget about those who still suffer attempting to meet ... Read More

An Analysis of Hugh Eliot’s Views on Modern Science and Materialism (1948 words, 5 pages)

Modern Science And Materialism What is real? This question has puzzled many what is really real or what isreality. Reality as I shall explain is one that is according to materialism andproven by science. Materialism is defined, as the metaphysical view holding thatmatter alone is real. This is what Hugh ... Read More

An Analysis of Mitochondria and Chloroplast (565 words, 3 pages)

Mitochondria and Chloroplast Essayname Fnord Discordiaemail brain.policewhiteface.netpublish yessubject Biologytitle Mitochondria and Chloroplast EssayBiologyMitochondriaand Chloroplast EssayI. Introduction Out of all the organelles thereare two that have fascinated microbiologists for the past hundred years. Thefirst is the mitochondria, nicknamed the "powerhouse of the cell." The secondis the chloroplast in plant cells that ... Read More

A Study of Migraines (719 words, 2 pages)

MigrainesMigraine headaches are the result of a disturbance in the neurochemistry of the central nervous system. They are relatively common, affecting three times as many women as men. Migraine sufferers typically report a definite pattern to their headaches, and they can report what stimuli bring them on. Most migraine sufferers ... Read More

A Report on the Various Types of Microscope (449 words, 2 pages)

Microscope Types The use of a microscope is to provide a magnified view of objects (that arebeing analysed) that are otherwise to small to be seen by the naked eye. Theycan be described according to their illumination and lens arrangement. (i)Microscopes are able to use either light or electrons as ... Read More

A Study on Metabolism (968 words, 2 pages)

Metabolism StudiesAbstractThe purpose in experimenting with computer simulations was to compare oxygen consumption rates in different mammalian subclasses. We compared monotremes, marsupials, and placental mammals at both warm and cold temperatures. The results supported our hypothesis that when temperature increased, metabolic rate decreased. This was also supported using a students ... Read More

The Life and Accomplishments of Dmitri Mendeleev (418 words, 1 pages)

Mendeleev was born in Tobolsk, Siberia. He was the youngest child of a large family . his father was a local school teacher whose career was ended by blindness and o support his family his mother ran a glass factory. Mendeleev learned some science from a political refugee who married ... Read More

A Study of the Human Memory (1041 words, 4 pages)

Memory Study The study of human memory and in particular the attempts to distinguish betweendifferent types of memory have benn investigated for the last century.Philosophy, psychiatry and psychologh have all contributed to this study.Korsakoff, Freud and Ebbinghaus are among the early contributers. Although theirobservations were not always methodological as strict ... Read More

An Analysis of Membrane Physiology (1217 words, 2 pages)

Membrane PhysiologyIntroduction The cell membrane is a fluid structure that is made up of phospholipids and proteins. Its main function is to allow osmosis and diffusion to occur in a cell. It protects a cell from taking in molecules that are too large and other chemicals that are not permeable ... Read More

An Essay on Engineering (258 words, 1 pages)

EngineeringGeneral Purpose To informSpecific purpose To educate the audience about engineering and the opportunities it can offer.Thesis Engineering is a very broad occupation and by going into this field you can almost go anywhere you want with it. 1. Introductiona. Are any of you engineers or have thought about going ... Read More

An Informative Paper About the Uses of Mechanical Energy (510 words, 1 pages)

Mechanical EnergyHave you ever wondered how a jet aircraft lifts its tremendous weight off the ground, or what gives a runner the stamina to reach the finish line in a race? In order to answer all these questions we must talk about the transformation of one sort of energy into ... Read More

Biology Essay Examples