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Science & Nature Essays and Term Papers
Functions Of The Digestive And Kidney Systems Of The Body1. You eat a hot dog, leave the bun, describe the physiological response to the increased food in your stomach.
Food inters the stomach and it increases the pH and H+ decreases thus the stomach get more basic. The stomach walls are also stretched. Chemoreceptors and stretch receptors detect the ...
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Computers That Mimic The Human MindComputers Mimic the Human Mind
The mind-body problem has captivated the minds of philosophers for centuries. The problem is how the body and mind can interact with each other if they are separate and distinct. One solution to the problem is to replace any mental term with a more accurate ...
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Green Laws Boost Clean-up IindustryEngelskaflevering d. 01.09.95
I
Have companies around the globe really become "house-proud", or is
planet earth just in for a spring cleaning? It is hard to say - but one thing is
for sure; the environmental sector is en-joying a boom. The market for pollution
control technology is on a steep ...
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Factors Of Parasitic VirulenceWhy do some parasites kill the host they depend upon while
others coexist with their host? Two prime factors determine parasitic
virulence: the manner in which the parasite is transmitted, and the
evolutionary history of the parasite and its host. Parasites which
have colonized a new host ...
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Acid Rainis a form of air pollution which is the cause of a lot of environmental damage now and in the past. It is formed when oxides of sulfur and nitrogen combine whith atmospheric moisture in a result it forms sulfuric (so2) and nitric (Nox) acids.
What affects when it hits the surface is a lot, for ...
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Muscular Dystrophyrefers to, not one, but a group of muscle diseases. These diseases have three features in common: they are hereditary; they are progressive; and each causes a characteristic and selective pattern of weakness. Duchenne (DMD) is the most prevalent and severe childhood form of this group of ...
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Fire Antshave been in the United States for over sixty years, and almost
every American that lives in or frequently visits the quarantined states which
they inhabit has had an unpleasant run in with these troublesome critters.
Inhabitants of the Southeast who have ever stood unwittingly atop a fire ...
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Man Vs. The EnvironmentThe environment can be something as vast as global weather patterns or as simple as the desert regions. With the advent of many technologies, the delicate balance of the environment has been upset (Elliot, 1961, p. 392). Strip mining, slash and burn farming, damming of rivers, and the extinction ...
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Acid RainThe Effects of on Lakes and Trees
has long been argued by society�s most formidable minds. It indirectly
destroys ecosystems that surround forests and lakes (Taylor, 26). People need to make decisions
dealing with the destruction of nature and the role plays in it. destroys
millions of ...
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Smuggling Of Nuclear MaterialOver the past five years the former states of the Soviet Union haven't
been able to prevent the leakage of nuclear material. Nuclear materials and
technologies are more accessible now than at any other time in history, due to
the breakup of the Soviet Union and the worsening of economic ...
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Attention Deficit Hyperactive Disorder(ADHD), is the most common psychiatric disorder among children today. It�s symptoms are not necessarily obvious and start at various times. Some children give indication of having the disorder before they are born, others are not diagnosed with having it until their preteen years. ADHD ...
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The Forever Moving LandThe land below us is always in motion. Plate tectonics studies these
restless effects to give us a better understanding of the Earth and its past.
New molten rocks are poured out in the form of magma from the mid-ocean ridges.
The rock is recycled and re-entered back into the earth in deep ocean ...
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The Element CesiumCesium was discovered in 1860 by R. Bunsen using the process of spectroanalysis ( spectroanalysis is the chemical analysis of a mixture of substances or of a complex substance by study of a spectra). Cesium is the heaviest of all alkali metals because of it�s atomic weight. Cesium�s description, ...
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History Of Cell MembraneIn the early stages of the twentieth century, little was known about cell membranes. Until the early 1950s, the biological cell membrane was rarely mentioned in scientific literature. It was recognised that something was probably there, but hardly anything about it was known. Considering the lack ...
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A Discussion On EarthquakesPerhaps Mother Nature offers no greater force than that of the earthquake.
Across the span of time, earthquakes have been recorded for their incredible
destructive forces, and their abilities to awe mankind with their unparalleled
force. Earthquakes can often strike without any notice, leveling ...
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Life On Other Planets?1
Life in outer space? A figment of our wildest imagination or
reality? This age old question has been lingering in the heads of human
minds since the beginning of reasonable thinking. Today, these questions
still remain unanswered, although extensive research has been conducted by
scientists ...
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Evolution 2Evolution is a force than nothing can escape. Communities evolve constantly and although there is no standard of where a society should be at any given moment, communities evolve individually. Then in reaction to a developing community, people grow and change. Then in reaction to people evolving ...
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Lyra-the StarA pale blue light in the lower part of Lyra shines the Th brightest star in the sky, Vega. This brightest star of Lyra is moderately above Caster and below Regulas in the Hertzpring-Russell diagram. It is between spectral classes B and A and between 10 and 100 times the real brightness of the sun. ...
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Orion NebulaThe contains one of the brightest star clusters in the night sky. With a magnitude of 4, this nebula is easily visible from the Northern Hemisphere during the winter months. It is surprising, therefore, that this region was not documented until 1610 by a French lawyer named Nicholas-Claude ...
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Human Cloningwas always thought to be something you see in science-fiction novels or films but now with science and technology rapidly advancing we now can see that can become a distinct possibility. Cloning especially in humans has become one of the most heated debates going on right now in scientific ...
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Celiac Sprue DiseaseWhat if your doctor told you that eating a certain food say pizza would be devastating to your health? You might not like it, but you'd learn to live with it. But what if it was more than just pizza? What if you were told to avoid all bread, breadcrumbs, and pasta? And dozens of breakfast cereals, ...
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David Suzuki's A Planet For The TakingIn the essay "A Planet for the Taking," David Suzuki describes
Canadians' odd appreciation for this great natural bounty we call our own. He
is an internationally acclaimed scientist who is concerned about the welfare of
Canada. Suzuki's intended audience is the Canadian population that does ...
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Hot ZoneImagine walking into a tiny village in Africa, suffering and dying from some unknown virus. As you approach the huts you hear the wails of pure agony from the afflicted tribe members. Coming closer, you smell the stench of vomit mixed with the bitter smell of warm blood. People inside lay dying ...
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Addition Of VectorsA vector is an arrow whose length represents the magnitude of a quantity and whose direction represents the direction of the quantity. Vectors are useful in combining velocities that are not parallel. The sum of two or more component vectors is called a resultant.
When the vectors are not at ...
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