Biology Essays Examples For College & High School Students in PDF

10822 total results

An Analysis of the Business of Cfc by Du Pont, French Chemist (568 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. It s invention became a great triumph when Freon took the place of sulfur dioxide or ammonia which ... Read More

An Analysis of the Phototaxis in Euglena Gracilis, a Microorganism (810 words, 2 pages)

Phototaxis in Euglena GracilisAbstract The unicellular flagetta Euglena gracilis (E. gracilis) shows positive phototaxis. We studied E. gracilis to see its effects of photosynthesis under the compound microscope. What I came up with is that E. gracilis uses photosynthesis to make their food and to have a positive phototaxis. While ... Read More

The Description of Carbon Dioxide Gas, Its Production and Uses (1437 words, 2 pages)

Carbon dioxide is a colorless, odorless, non-toxic, and slightly acid-tasting gas. Sometimes referred to as a carbonic acid gas, the molecule consists of one atom of carbon joined to two atoms of oxygen. It occurs naturally in the atmospheres of many planets, including that of earth. Carbon dioxide is uniformly ... Read More

An Overview of the Whole Journey From Graphite to Diamond (1750 words, 4 pages)

From Graphite to DiamondThe Whole JourneyIt is a long journey for a piece of graphite to transform into a beautiful diamond. It only takes a little energy ( 1.9 Kj mole ) but it is a very difficult process. To create a diamond you must have temperatures ranging from room ... Read More

An Analysis of the Theories of Extinction of Dinosaurs (374 words, 1 pages)

DinosaursDinosaurs 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 geological time goes, that almost all the dinosaurs living on earth disappeared. ... Read More

An Analysis of the Theories and Evidence of Evolution (656 words, 1 pages)

While it is key to the study of evolution to develop a theory to explain how species can change over time, it must also be supported by evidence from the scientific study of the natural world. One of the difficulties faced by many theories, such as Lamarck s, was a ... Read More

An Introduction to the Basic Astrological Assumptions: The Twelve Signs of the Zodiac (3495 words, 6 pages)

The basic astrological assumptions are not hard to grasp. For if astronomy is the study of the movements of the heavenly bodies, then astrology is the study of the effects of those movements. The astronomers of the ancient world assumed a division of the universe whereby the superior, immutable bodies ... Read More

An Introduction to the Life and Career of Albert Einstein (1927 words, 4 pages)

Einstein, Albert (1879-1955), German-born American physicist and Nobel laureate, best known as the creator of the special and general theories of relativity and for his bold hypothesis concerning the particle nature of light. He is perhaps the most well-known scientist of the 20th century. Einstein was born in Ulm on ... Read More

An Introduction to the History of Nuclear Energy in the 1950s (2341 words, 3 pages)

In the mid-1950s, nuclear physicists confidently predicted that nuclear energy would usher in a new age for humanity. The cost of energy would be so low it would be almost too cheap to meter. They predicted that by the year 2000 there would be thousands of commercial reactors producing unlimited ... Read More

An Analysis of the Concept of Cloning in the Human Future (623 words, 1 pages)

Cloning. It s the ability to create an exact genetic duplicate of another living thing. This form of science puts humans on an almost god like level. We have the ability to create what we want however we want it. We have the ability to resurrect famous people from the ... Read More

An Argument in Favor of Cloning and Genetic Engineering (544 words, 1 pages)

Cloning is it a good idea or a bad idea? That is the question on most peoples minds, will it help society or make it worse then it already is, or will it be going against everything right in this world. No one knows the answers to these questions but ... Read More

An Introduction to the Issue of GMO’s in the Products in the United States (616 words, 1 pages)

Analysis of Opposition EssayIn the first paragraph of Congressman Bernard Sanders persuasive essay on genetically modified organisms uses shocking statistics to convince the reader the issue of genetic engineering effects everyone. He points out that genetically engineered organisms are already on the table, and the usage of GMO s (genetically ... Read More

An Introduction to the Chemical Chlorpromazine or Thorazine (1612 words, 4 pages)

Chlorpromazine Trade Name ThorazineChlorpromazine was originally developed to ease anxiety associated with patients before surgery. Henry Laborit, a heart surgeon, was experimenting with phenothiazines to inhibit the autonomic nervous system in his surgery patients. He was looking for something to solve the problem of shock to the human body caused ... Read More

A Debate on the Legalization and Morality of Human Cloning (870 words, 1 pages)

Should human cloning be allowed and legal? That s an interesting question that has been around for years. Cloning first came to the public attention roughly thirty years ago (Kass 27). After failed attempts to try to make cloning legal on humans, scientists turned to animals. Our own President did ... Read More

An Introduction to the Experiment Showing the Determination of Creatinine Concentration in 24-Hour Urine Samples (1084 words, 4 pages)

Experiment showing the determination of Creatinine concentration in 24-hour urine samples.AimThe aim of the practical is to test the following hypothesisThe amount of creatinine found in a persons 24-hour urine sample bears a direct relationship to the body mass of that person. METHODMaterials1) 5 urine samples of unknown concentration numbered ... Read More

An Analysis of the Planetary Movement and Neptune Rising (649 words, 1 pages)

A Periodical on Rising Neptune By Paul CusinIn past years the knowledge of our solar system never really went further than Jupiter and Saturn, But 11 years ago the VOYAGER II on a mission to observe Saturn and Jupiter had time to waste so it took some shots of Neptune. ... Read More

An Analysis of the Discoveries Made by the Hubble Space Telescope (515 words, 2 pages)

Hubble Space TelescopeThe Hubble Space Telescope is the product of a joint effort between NationalAeronautics and Space Administration (NASA) and the European Space Agency (ESA).It was delivered into low-Earth orbit by the space shuttle Discovery on April 25th, 1990.The planning and operation of the HST is done for NASA by ... Read More

The Characteristics of Helium in Helium Baloons (512 words, 1 pages)

How Helium Balloons WorkThere is something incredibly special about helium balloons! If you buy one at the circus or fair, you can hold its string and it will ride along above you. If you let go of the string it will fly away until you cannot see it anymore. If ... Read More

An Analysis of the Differences between Girls and Boys in the Nature Versus Nurture Debate (582 words, 1 pages)

The differences between boys and girls are the result from the combination between nature and nurture. These two elements not only build up someone s behavior but also have different kind of influences. Both elements cannot be separated because it played in different times and different situation. Since we cannot ... Read More

An Overview of Robert Wilhelm Bunsen’s Life and Biography, a German Chemist (332 words, 1 pages)

Robert Wilhelm Bunsen s name was famous for a a few discoveries in the field of chemistry. For example you might recognize Bunsen from the lab device, the Bunsen Burner . He also helped invent the spectroscope and discovered spectrum analysis. And at the beginning of his career, he discovered ... Read More

The Negative Effects of Acid Rain (760 words, 2 pages)

(1)Andrew J. RickertDeadly DownpourAn extremely deadly problem in our environment is acid rain. It causes plants and animals to die especially the fish in our waters. This deadly rain causes harm because we consume fish, plants, and water exposed to acid rain. Acid rain is a problem that we must ... Read More

A Biography of George Washington Carver, an American Scientist (440 words, 1 pages)

George Washington CarverCarver was born a slave in Missouri. Although his exact birth date is unknown it has been narrowed down to July 12, 1861. Carver was only an babey when his dad was killed an he, his brother and mother were kidnapped. He was then orphaned and Moses Carver, ... Read More

An Analysis of an Earthquake as One of the Most Terrifying Phenomena That Nature Can Dish Up (3070 words, 6 pages)

An earthquake is one of the most terrifying phenomena that nature can dish up. We generally think of the ground we stand on as "rock-solid" and completely stable. An earthquake can shatter that perception instantly, and often with extreme violence. Up until relatively recently, scientists only had unsubstantiated guesses as ... Read More

An Analysis of the Phenomenon of X Chromosome Inactivation (2378 words, 5 pages)

Silence of the Xs.(X chromosome inactivation) Authors John TravisIssue August 5, 2000Does junk DNA help women muffle one X chromosome?Here's a riddle that will stump most people. What do calico cats--those popular felines with a patchwork of orange-red, black, and white fur--have in common with women who lack sweat glands ... Read More

A Look at Instrument sand Future Advancements of the Robot Car (1465 words, 3 pages)

Robot Cars on Mars Instruments and Future AdvancementsFor many years scientists that studied the planet mars have tried to make a remote controlled vehicle that could withstand the arrival, landing, and that could gather useful information that could bring us to understand the ways of Mars.Whatever info that was gathered ... Read More

The Aftermath of Hiroshima and Nagasaki Japan’s Bombing (708 words, 2 pages)

When the United States dropped an atomic bomb on Hiroshima Japan and then another on Nagasaki in 1945, the world began to change in many ways. The initial reaction to this deadliest of all weapons was one of great fear, but this was not the only reaction. Atomic energy was ... Read More

The Definitions of Cloning and the Modern Development of the Science of Genetic Engineering (1340 words, 2 pages)

As science and technology go full steam ahead into this, the 21st century, we must take a step back and look at all of the moral and ethical aspects of the science that we are developing. The topic raised is whether or not cloning is an acceptable development to be ... Read More

Understanding the Field of Material Science (1208 words, 2 pages)

Material science is the study of the properties of solid materials and how those properties are determined by a material s composition and structure. Most engineers have the primary function of relating the design and production of machinery and components. Materials science and engineers are involved with all aspects of ... Read More

Understanding How Genetic Engineering Works from the Perspective of the DNA (1064 words, 4 pages)

IntroductionGenetic engineering is actually a very new branch or science, and is still in its developing stage. It is said to have first begun when an English scientist saw the cell walls of cork through a microscope in 1655. That spawned an interest in microbiology, which eventually formed the branch ... Read More

The Background Information of the Planet Jupiter (463 words, 1 pages)

Jupiter is one of the Sun s most interesting planets. Jupiter has many intriguing properties, which differ from those of Earth and other planets. It has many satellites uncommon to others in the solar system. It even helps to sustain life on Earth. Jupiter may seem like an ordinary planet, ... Read More

Biology Essay Examples