Biology Essays Examples For College & High School Students in PDF

10822 total results

The Two Types of Seaweed in Scotland (345 words, 1 pages)

Recently, I interviewed someone from the Island of Orkney, off the northern shore of Scotland. He described the seas as being nutrient rich and crystal clear. Traditionally, sea weed, (called sea vegetables in Scotland) has been used for herbal remedies, food products, animal food, cosmetics, and fertilizers. Two of the ... Read More

Plant Grow Regulator: Methods and Materials (527 words, 1 pages)

Introduction Organic chemicals which are produced by the plant in small amounts act as a plant growth regulator (PGRs). This plant growth regulators do exactly what the name says the regulate the growth of a plant. They also regulate how the plant grows. Plant growth regulators are one chemicals that ... Read More

Plasma Membrane and Homeostasis of Cells (601 words, 1 pages)

9.1 PLASMA MEMBRANE I. All cells must maintain homeostasis in order to live. - they do this by controlling what materials can enter and leave II. All cells have a plasma membrane that is SELECTIVELY PERMEABLE - this only allows for specific things to enter and leave the cell A. ... Read More

The Summary of the Essential Features of Watson-Crick Model (427 words, 1 pages)

DNA is the single most important molecule found within cells. It is a stable polynucleotide, which contains coded information for inherited characteristics. It is contained in chromosomes in the nucleus of an eukaryot cell. The essential features of the Watson-Crick model are summarised below. 1. The two helical polynucleotide chains ... Read More

A Short History of Nitroglycerin (822 words, 1 pages)

Nitroglycerin (C3H5N3O9) Nitroglycerin is one of the most sensitive explosives ever to be commercially produced. It is a very dense liquid, and is sensitive to heat, impact, and many organic materials. Although it is not water soluble, it will dissolve in 4 parts of pure ethyl alcohol. Heat of Combustion ... Read More

Reasons on Wanting to Be a Paleontologist (430 words, 1 pages)

When I grow up, I want to be a Paleontologist. After graduuating from F.L.I.C.S I want to go to Casstech High school in Detroit and graduate with honors. After graduating form Casstech I want to study at The University of Michigan located in Ann Arbor Michigan. I want to study ... Read More

Louis Kahn and the Salk Institute for Biological Studies (761 words, 3 pages)

Standing alone against the endless blue sea, the Salk Institute by Louis I. Kahn is one of a kind. "Louis Kahn's Salk Institute for Biological Studies on the Pacific coast near La Jolla aspires within its own spirit to an order achieved through clarity, definition, and consistency of application"(Heyer 195). ... Read More

The Formation and Categorization of Tropical Hurricanes in the Caribbean and SE United States (897 words, 2 pages)

The Caribbean region and the South Eastern United States of America are regularly subjected to the impact of tropical hurricanes (A)Briefly outline characteristics of such hurricanes. The hurricanes that occur over the Caribbean region and the United States of America usually eventuate between August and October. For these hurricanes to ... Read More

An Analysis of the Double Helix by James Watson (1915 words, 6 pages)

James Watson's The Double Helix A Review A review of Watson, James D. The Double Helix. New York Atheneum, 1968. James Watson's account of the events that led to the discovery of the structure of deoxyribose nucleic acid (DNA) is a very witty narrative, and shines light on the nature ... Read More

Search for Other Life Forms beyond Earth (2272 words, 3 pages)

Do Aliens Exist Just about 500 years ago people believed that the earth was still flat, 50 years ago people doubted the existence of an alien life, 5 min ago the people of earth believe that aliens existed. Many individuals around the world have reportedly been contacted by extra terrestrial ... Read More

A Waste of Daylight in 1902 by William Willet (1865-1915) (741 words, 2 pages)

Benjamin Franklin originally created the idea of daylights saving time during his sojourn as an American delegate in Paris in 1784. As time went by the idea faded until a London builder, William Willet (1865-1915) wrote a pamphlet named Waste of daylight in 1907, which suggested advancing clocks twenty minutes ... Read More

A Critical Review of an Article about Gamma-Ray Bursts in the Time Magazine (568 words, 1 pages)

Critical Review In November of 1999 an article about cosmic cataclysms appeared in Time magazine. A cosmic cataclysm is also known as a gamma-ray burst. These gamma bursts cant be seen with the naked eye and they release more energy than our sun releases in its whole lifetime. As of ... Read More

The Morality of Cloning and the Health Defects Related to the Clones (501 words, 2 pages)

Today there are many scientist that want to clone humans and other organisms in order to make the world a better place. Scientist think that if they can clone other life forms, they will one day be able to make organized other such body parts for humans as stated in ... Read More

Good and Bad Sides of Cloning (1102 words, 3 pages)

Cloning Good or Bad The rapid development of the technology for cloning has led to moral debates around the world on whether or not to ban breathing human clones. While the potential benefits of genetic engineering are considerable, so may be the potential dangers. We have come to believe that ... Read More

A History of Dr. Willmut’s Technique and Cloning the Sheep Dolly (546 words, 1 pages)

A Clone in Sheep's Clothing Three years ago a sheep named Dolly became the biggest news since the first successful open-heart surgery. Dolly, unlike every other mammal on earth is an identical copy of its mother. Dolly has no father. The "miracle" of cloning was preformed by Dr. Ian Willmut ... Read More

The Biographies of Rosa Parks and Muhammad Ali, and the Discovery of DNA Structure (1395 words, 3 pages)

Rosa Parks Angry Bus Rider Rosa Parks was tired. She'd just spent all day sewing and pressing clothes at the Montgomery, Alabama, department store, where she was a tailor's assistant. Her feet, neck and shoulders ached as she arrived at her bus stop to go home. The thought of standing ... Read More

A History of the Chlorofluorocarbons, Commonly Known as Freons (564 words, 1 pages)

The beginning of the CFC(chlorofluorocarbons) era started in 1928, when CFC were invented by a Du Pont chemist. CFC were best known as "freons" and became famous as a safe, nonflammable refrigerant. Its invention became a great triumph when Freon took the place of sulfur dioxide or ammonia which was ... Read More

The Wide Range of Work of a Chemical Engineer (278 words, 1 pages)

It is true that chemical engineers are comfortable with chemistry, but they do much more with this knowledge than just make chemicals. In fact, the term "chemical engineer" is not even intended to describe the type of work a chemical engineer performs. Instead it is meant to reveal what makes ... Read More

A Comparison of Big Bang and Steady State Theories of Creation (1283 words, 5 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

The History of Bigfoot (1496 words, 2 pages)

BIGFOOT Bigfoot, man, beast, or nonexistent, that is the question? Six feet or taller, giant is the word for this "thing." Hairy all over, feet, skull, and hands larger than a humans. All is said about this nonfictional creature, or is it just a story brought upon in the early ... Read More

The Use of Auxins and Their Effects on Rooting (519 words, 1 pages)

Auxins and their effects on Rooting Introduction Thimann and Koepfli identified growth-promoting and root-forming substances in plants. They demonstrated the practical use of IAA in the stimulation of root formation on cuttings. Even though there a number of studies indicating that auxins have a promotive effect on rooting there are ... Read More

A History of Ancient Greek Astronomy (2008 words, 3 pages)

Ancient Greek Astronomy Since the first Egyptian farmers discovered the annual reappearance of Sirius just before dawn a few days before the yearly rising of the Nile, ancient civilizations around the Mediterranean have sought to explain the movements of the heavens as a sort of calendar to help guide them ... Read More

The Advantages of Using Natural Gases over Liquid Fuels (739 words, 1 pages)

Ken Frencher 31999 Chem 136 Liquid Fuels from Natural Gas We have known for a long time that eventually our oil deposits will dry up, and it would be helpful at that time if we had some kind of alternative fuel to power all of the machines that we use. ... Read More

The Discovery of Diamond and Its Uses (2408 words, 4 pages)

The unique nature of diamond is heavily dependent upon its composition, crystal structure, and mechanical, thermal, and electromagnetic properties.1 Of those dependencies, composition exacts the most influence over the characteristics. Crystal structure is the repeating pattern of diamonds composition, and each of the properties are the result of molecular interaction ... Read More

Advantages and Disadvantages of Fossil Fuels (3371 words, 7 pages)

FOSSIL FUELS. Contents References3 I. Introduction(Fossil Fuel Energy)4 II. Types of Fossil Fuels6 Coal6 Oil7 Natural Gas8 III. Conclusion9 References Web Address of References httpwww.energy.ca.goveducationstorystory-htmlchapter05.html httpwebhome.idirect.combobitaCretaceousUsesOfFossilsindex.htm httpscience.cc.uwf.eduSHCurrfossil.fuel.htm httpwww.education.leeds.ac.ukedutechnologyebp97leeccoal.htm httpwww.education.leeds.ac.ukedutechnologyebp97leecgas.htm Other Reference Underwood, Shelly and Gary Energy - How Australia Works Published in Victoria, 1995, by Cardigan Street Publishers. Twist, Clint ... Read More

An Analysis of Cryptography (1364 words, 7 pages)

INTRODUCTION CRYPTOGRAPHY the science of the enciphering and deciphering of messages in secret code or cipher cryptography is used everywhere it protects money transfers and credit card numbers used over the internet but its main purpose is to keep secret documents secure from foreign governments TERMINOLOGY CRYPTOGRAPHY the science of ... Read More

A Description of What Endorphin Really Is and Its Effect to Human Body (501 words, 1 pages)

What makes Us Happy "Endorphins are considered the best and most legal way of achieving a high" Nathan Altman said in his Endorphins Question and Answer article. Endorphins are polypeptides that are produced in the brain. They are able to bind to the neuro-receptors in the brain to give relief ... Read More

An Analysis of the Ideas in Videos of Paul Hewitt Series (396 words, 1 pages)

After successfully completing the first two videos of the Paul Hewitt series, I have been drawn to this course. The third video of the series reviews the concepts of vectors and projectiles. In this video Paul goes over a lot of previously stated formulas. The ideas of how fast or ... Read More

The Historical Events Interpreted as Possible UFO Sightings (687 words, 2 pages)

Uncharted Areas of the Unexplained Unidentified Flying Objects have been the interest of millions of people. Not just today, near the end of the 20th century, but even in the past, as far back as Egyptian times, people have had UFOs on their mind. In the last couple of decades ... Read More

An Introduction and a Brief History of UFOs and Aliens on Earth (2274 words, 8 pages)

UFOs and Aliens on Earth- If you had mentioned seeing a Unidentified Flying Object (UFO), or spaceship from another planet 100 years ago, you would probably be thought of as a raving lunatic. If you had mentioned one 50 years ago, the case would be thought about, but with much ... Read More

Biology Essay Examples