Science & Nature Essays and Term Papers


In many controversial topics around the world, such as abortion, gun control, legalized drugs, the death penalty, and (to name a few), we can find differing positions, and opinions. Many of these arguments, can be narrowed down to two different views, or constructs: individualistic and ...

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Flowers fold their petals; plants fold their leaves as evening falls. With the exception of owls and their nighttime predators, the creatures of land, sea, and air curl up into their bedroom niches in the rocks, trees, and sand. Dawn comes and the unfolding begins. The outside world, which has ...

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Nucleic Acids

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. ...

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Dolphins 2

A great philosopher by the name of Plutarch once wrote that the dolphin “is the only creature who loves man for his own sake. To the dolphin alone, nature has given what the best philosophers seek: friendship for no advantage.” The foundation to a relationship like this is based on communication. ...

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Global Warming ------

The earth’s climate is predicted to change because human actions are altering the chemical composition of the atmosphere through the increase of greenhouse gases, such as carbon dioxide, methane, and nitrous oxide. Global warming is a problem that everybody should be aware and concerned ...

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can be found in the SE sky in autumn, especially October. A dark night is especially helpful because many faint stars make up . This will help to make the fainter stars stand out because its hard enough to see a shape in . Up and to the west of , pegasus can be found. Down and to the east of ...

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Nuclear Weapons

The nuclear age opened with the development of the atomic bomb during World War II. Many people believed that weapons capable of mass destruction would make war unthinkable in the future. They hoped that the world would learn to live in peace. But a race to develop ever more powerful weapons ...

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Plate Tectonics

Prior to World War II, humans were conformed with the idea that the Earth and its continents had been basically unchanged since the beginning of time. A German meteorologist, Alfred Wegener observed that the coastlines of the seven continents could be fitted together almost perfectly like a ...

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Wind Tunnels

In this report I will talk about the wind tunnel. I will described what they are used for. The different types of from the slow speed subsonic to the high speed hypersonic tunnels. I will also give A few examples of the used today. The wind tunnel is a device used by many people, from High ...

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Fossil Fuel Consumption, CO2 And Its Impact On Global Climate

Background: At the beginning of human history, we had to satisfy our energy needs (for food, heat and movement) by using our own muscle power and gathering or hunting naturally available plants, animals and wood. Each stage in the evolution of human society (the development of farming, ...

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Environmental Crisis

"We Have An Because We Have A People Crisis - A Crisis of Population Growth, of Wasteful Consumption of Resources, and A Crisis of Apathy and Inaction." An environmental crisis is an emergency concerned with the place in which every human lives - the environment. A people crisis is an emergency ...

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The Solar System

is a family of objects, which orbit the sun. They were born 4.6 billion years ago. The most important are the 9 planets, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Mercury is the closest to the sun and Pluto is the farthest. also includes the stars and the moon. ...

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A Study Of Inheritable Traits In Fruit Flies

INTRODUCTION The Drosophila melanogaster, more commonly known as the fruit fly, is a popular species used in genetic experiments. In fact, Thomas Hunt Morgan began using Drosophila in the early 1900’s to study genes and their relation to certain chromosomes(Biology 263). Scientists have located ...

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Uranium: Nuclear Friend Or Nuclear Foe

On Monday August 6, 1945 the U.S. Bomber Enola Gay flew over the Japanese city of Hiroshima. Seconds later a metallic projectile fell towards its target. In a blinding flash the world felt the power of a new age, the nuclear age. The study of radiation that would eventually lead to these ...

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Alzheimers Disease

Alzheimer’s disease is a slowly progressive, degenerative disorder of the brain that eventually results in abnormal brain function and death. The disease was first described in 1907 by a German physician, Dr. Alois Alzheimer(1864-1915). In the neurological autopsy on the brain of a 56-year-old ...

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get their start over the warm tropical waters of the North Atlantic Ocean near the equator. Most appear in late summer or early fall, when sea temperatures are at their highest. The warm waters heats the air above it, and the updrafts of warm, moist air begin to rise. Day after day the fluffy ...

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Cloning 4

Human embryo cloning should not be done because of the religious, moral, ethical, and social concerns that it places upon the human race. Although there may be some positive affects to cloning humans, there are far too many opposing factors in this situation. Many religious leaders of expressed ...

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Earthquakes 2

Earthquakes can simply be defined as a naturally induced shaking of the ground caused by the fracture and sliding of rock within the earth's crust. There are at least 6,000 earthquakes detected throughout the world each year. Many people have heard about or experienced first hand the effects ...

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Amyotrophic Lateral Sclerosis

(ALS), sometimes referred to as "Lou Gehrig's Disease," is a progressive fatal neuromuscular disease that attacks nerve cells and pathways in the brain and spinal cord. Motor neurons, among the largest of all nerve cells, reach from the brain to the spinal cord and from the spinal cord to muscles ...

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Acid Rain 12

Lake Barkevatn in Aust-Agder county used to have healthy stocks of trout and perch. As a result of acid rain, the trout stock died out in the mid-1970s and the perch stock at the beginning of the 1980s. · Precipitation that is polluted by sulphur dioxide (SO2) and nitrogen oxides (NOX) is known ...

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Down Syndrome 2

Down syndrome is one of the most frequently occurring birth defects in the world. It is a chromosomal abnormality which results in 47 chromosomes, instead of 46, with an extra chromosome being 21. Because the majority of Down syndrome cases affect the twenty-first chromosome, it is commonly ...

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Mistakes People Make With Steroids

Most people have the goal and dream to have the perfect body. They believe they will be more popular, or attractive if they achieve the body that they desire. But what lengths will people go to, to get the perfect body? One of the biggest problems in sports today, as many people know, is ...

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Evolution Of Immunity And The Invertebrates

"Article Summery" Name: "Immunity and the Invertebrates" Periodical: Scientific Pages Read: 9 The complex immune systems of humans and other mammals evolved over quite a long time - in some rather surprising ways. In 1982 a Russian zoologist named Elie Metchnikoff noticed a unique property of ...

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Pollution From Livestock And Manure

Pollution is a problem to every one. One kind of pollution is manure pollution in water. There is a lot of confused people as what should be done, and what can be done to stop it . They have to find a better way of dealing with it. Because livestock is part of our total economy, but they can ...

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Throughout the course of time, science has been somehow responsible nearly every time a major concept in society was changed. The early twentieth century is no exception. This was a period of novelty; new inventions, new luxuries, and new ideas. One of these new ideas was the concept of “,” or ...

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