Science & Nature Essays and Term Papers

Tin

's discoverer is unknown but one thing is known. has been used and discovered by the ancients. was an accidental discovery. has been around for many years. Proof is in the fact that is mentioned in the old testament of the bible. had a great effect on the world because of its low price, ...

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Cloning And Embryo Research

: The Science Fiction Reality The idea of cloning a life form seemed like something read from a science fiction novel just ten years ago. Now, the theories, ideas and facts of cloning embryos have made cloning one of the most talked about social issues of our time. The researchers of this ...

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Chromosome Probes At The University Of Toronto

Uploaded: November 29, 1986. Sensitive chromosome probes recently discovered by a University of Toronto geneticist will make it easier to detect certain types of genetic and prenatal diseases, as well as being used to determine paternity and provide forensic evidence in criminal cases. ...

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Acid Rain 9

Acid rain is a serious problem with disastrous effects. Each day this problem seems to increases, many people think that this issue is too small to deal with, this problem needs to be solved head on and it should be solved before it gets too late. In the fallowing paragraphs I will be discussing ...

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Ocean Environment

The sea is the most obvious feature of the earth's surface. Approximately seventy percent of this surface is covered by water, in one way or another. Beneath this water are the familiar sands of the beaches, bottoms of bays, and the inshore ocean. Farther offshore this water covers an ...

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Dna 4

The molecule responsible for the transformation of characteristics form one generation to the next is called DNA. The genetic material, located in the chromosomes is a combination of acid and histones. DNA is made up of units called nucleotides. Nucleotides are made up of 3 components, a five ...

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Dna 2

In the last 10 years, there has been some scientific leaps concerning diabetes, and genetic engineering. The increasing incidence and diagnostic detection of diabetes worldwide coupled with changing trends in the food animal market stimulated people to seek alternative sources of insulin ...

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How Technology Effects Modern America

The microeconomic picture of the U.S. has changed immensely since 1973, and the trends are proving to be consistently downward for the nation's high school graduates and high school dropouts. "Of all the reasons given for the wage squeeze - international competition, technology, deregulation, the ...

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Solar Cells

today are mostly made of silicon, one of the most common elements on Earth. The crystalline silicon solar cell was one of the first types to be developed and it is still the most common type in use today. They do not pollute the atmosphere and they leave behind no harmful waste ...

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Prescribed Burning

It's a promising tool, this idea of to defuel forests and help restore ecosystem health. But it's risky business, too, and smoke clouds public acceptance. I THOUGHT FIRE SEASON HAD ENDED. BUT THE SCENT OF PINE SMOKE IN MY NOSTRILS LATE LAST OCTOBER TOLD ME SOMETHING DIFFERENT. Deep in Oregon's ...

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Depression 6

One of the scariest emotional experiences a person can ever suffer during their lifetime is to experience a form of depression. Over one in five Americans can expect to get some form of depression in their lifetime. Over one in twenty Americans have a depressive disorder every year. Depression ...

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On Darwin's Theory Of Natural Selection

AP Biology Whether it is Lamarck's theory that evolution is driven by an innate tendency towards greater complexity, Darwin's theory of natural selection, or the belief that the evolution of plant and animal life is controlled by a higher being, the process of evolution cannot be denied. ...

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"How Is Helium Produced?"

Production: Although Helium is one of the most common elements in the universe it is a rare gas on earth. It exists in the atmosphere in such small quantities (less than five parts per million) that recovering it from the air is uneconomical. Helium is produced as a by-product of the refining of ...

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Essay On Global Warming

Global Warming, aside from pollution is one of scientists biggest concerns. Global Warming is caused by the Greenhouse effect. There are 4 steps in the Greenhouse effect. 1-Sunlight radiates from the sun, through space, to Earth’s atmosphere. 2- The sunlight enters the atmosphere and hits ...

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Hiv

Since the first AIDS cases were reported in 1981, through mid-1994 more than 402,000 AIDS cases and more than 241,000 deaths have been reported in the United States alone. This is only the tip of the iceberg of infection, however. It is estimated that nearly 1 million Americans had been infected ...

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Constellations

Every culture known to history and anthropology has seen in the heavens distinctive patterns, called , and formed by the stars. are usually comprised of bright stars that appear close to each other. Oriental cultures (the ancient Chinese, for example) formed intricate patterns from some of the ...

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Genetic Engenering -4

A new technology is dawning on our era, a technology that could change the lives of our children and their children to come. Will this medical advancement be pursued or will it be outlawed? The medical advancement is genetic engineering, the duplicating of human cells, and people have strong ...

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CODEINE (C18 H2, NO3 H3PO4 1/2 H2O)

CODEINE (C18 H2, NO3 H3PO4 1/2 H2O) Our team researched the drug Codeine. We used several different sources to gather our information. We go information from Jay Moser and Sue Peterson, our two local pharmacists. We researched medical encyclopedias, journals, and magazines. Codeine is known ...

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Electronic Commerce

One of the fastest growing industries today is . Almost anything can be purchased, traded, or sold all via the Internet. A person sitting in their living room dressed in pajamas on a rainy Saturday morning in mid December can hookup to the internet and place their bid on a new chess set for the ...

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The Origin Of Life

A group of lab students hover over a badly crushed fossil of a human skull. A young woman kneels with her hands folded in front of her while at the alter. Many excited children marvel over a cute little creature named ET pointing to the sky and saying, "ET phone home." What does each of these ...

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DNA

After staying on the plant Earth reaching the human genetic technology, I have come up with this report the four things I am going to talk about in this report are: 1) What is the chemical basis of the plant Earth 2) What do human mean by "genetic technology" and how is it possible 3) How have ...

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Animal Research

For the past 20 years, there has a been an on going heated debate on whether experiments on animals for the benefit of medical and scientific research is ethical. Whether it is or isn't, most people believe that some form of cost-benefit test should be performed to determine if the action is ...

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Cfc

The beginning of the (chlorofluorocarbons) era started in 1928, when ' were invented by a Du Pont chemist. ' 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 was ...

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Panda Report

Giant pandas are an endangered species. They are often called pandas or panda bears, although their scientific name is Ailuropda Melanoleuca. Being an omnivore, the giant panda’s diet consists of 99% bamboo along with small percentages of fish, pikas, rodents, vines, irises, crocus, and murices ...

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Botany

Choosing a career in ensures a person a wide choice of career opportunities, a fair salary, and an exciting life. If you prepare yourself with a good education and a positive attitude, you’ll be well on your way to becoming a successful botanist. Anyone can find enjoyment and fulfillment in a ...

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