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» Science Essays and Papers
Greenhouse Effect
<view this essay>.... recently has it become a priority. So important, that figures such as Vice
President Al Gore have spoken out. Many are realizing that the greenhouse effect
is not something to be put aside, yet rather something to be worked on and
studied. "The greenhouse effect displays that nature is not immune to our
presence" (Kralijic, 1992). Ways must be found to lessen the threat of this
growing crisis. If this effect were to continue and grow, the earth’s population
would be exposed to serious threats.
Carbon dioxide is essential for plants who use it for photosynthesis, yet too
much can lead to serious threats. The problem lies in the disruption of the
balance betwee .....
Number of words: 924 | Number of pages: 4 |
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New Developments Or Research In Genetic Cloning: Summary
<view this essay>.... because they all have one thing in common:
they may be beneficial to human beings later on. For example, the newest entry
in my paper, and perhaps the one that shocked the whole world, was the report
about the first successful clone mammal from non-embryonic cells. This will be
helpful in the future for patients waiting for organ transplants. Scientists
will be able to clone a fully functional organ, and replace it with the damaged
one. The report on the cloning of the human's morphine receptor is advantageous
to us because this helps scientists to develop new analgesics.
The third section of the paper contains a brief discussion about the
advantages and .....
Number of words: 2623 | Number of pages: 10 |
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Mellville And Darwin's Writings On The Galapagos Islands
<view this essay>.... the terms used in description-
these all vary between the two passages. These passages exemplify that a single
subject, under varying conditions, can be seen and portrayed using differing
style and rhetoric.
Mellville's passage uses allusions, analogies, and comparisons to well-
known entities to better illustrate the Galapagos Islands to the common reader.
Mellville assumes that the reader is unfamiliar with the Galapagos islands, or
"Encantadas," as he chooses to refer to them as and paints a picture of the
Galapagos Islands using everyday terms. An important part of Mellville's style
is that the he never directly describes the islands. "Take five-and-twen .....
Number of words: 977 | Number of pages: 4 |
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Chemistry Investigation
<view this essay>.... increase in reactant rate. Generally, as the temperature is increased, the particles get more energy, so they bump into one another more, therefore speeding up the reaction time. This is called the collision theory, which I will discuss in greater depth later.
Whether or not there is a catalyst. A catalyst speeds up the rate of reaction and remains chemically unchanged by the end of the experiment. A catalyst lowers the activation energy. This is the energy needed to start a reaction.
The variable that I have decided to change is the temperature. I have decided to alter the temperature of the yeast and time the amount of carbon dioxide that wi .....
Number of words: 2447 | Number of pages: 9 |
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The Shrew
<view this essay>.... and leaves in moist
forest areas.
Most of its gathering of food is done on the surface of the ground
but the behavior of shrews that have been caught suggests that occasionally
they may tunnel through dead leaves and loose soil in search of food. The
shrews burrow is a small underground number of shallow tunnles under flat
stones or logs. Burrows found in east Texas were about 2.5 cm round, from
25 cm to 1.5 m long, and not more than 20 cm below the surface. Each burrow
has a large area at the end for the nest which was composed of shredded
grass. These nests were used for young or as a resting place for groups of
adult shrews.
Compared to most types of shre .....
Number of words: 531 | Number of pages: 2 |
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Dementia
<view this essay>.... By contrast is a long term progressive disorder (with the exception of the reversible s). The course of AD can range anywhere from 1.5 to 15 years with an average of about 8.1 years (Terry , 1988). AD is usually divided into three stages mild, moderate, and severe. Throughout these stages a specific sequence of cognitive deterioration is observed (Lezak, 1993). The mild stage begins with memory, attention, speed dependent activities, and abstract reasoning dysfunction. Also mild language impairments begin to surface. In the moderate stage, language deficits such as aphasia and apraxia become prominent. Dysfluency, paraphasias, and bizzare word combina .....
Number of words: 4290 | Number of pages: 16 |
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Global Warning
<view this essay>.... increases in the effective gasses, threatening a disruption to the equilibrium between incoming and outgoing energy, and a resulting average global warming." From 1880 to today, by many measurements, the global average temperature has increased by 0.5 Degrees Celsius. Human and ecological systems are already vulnerable to a range of environmental pressures, including climate extremes and variability. Global warming is likely to amplify the effects of other pressures and to disrupt our lives in numerous ways. "Melting icebergs and expanding oceans ma .....
Number of words: 793 | Number of pages: 3 |
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Science And Ethics
<view this essay>.... everyone Victor cared about when Victor started to realize what he had done was wrong. Victor realized that he never should have tried to play God. There is a fine line between scientific research and experiments that are morally, ethically, and religiously wrong and who are we to cross it?
The first example of man performing corrupt experiments is genetic engineering. In this case, man alters the genes of the fetus. This might be acceptable if the reason for the alteration is a life or death situation. If the baby will not be able to live without the procedure being done, then it is acceptable. But nowadays, doctors are performing genetic engineerin .....
Number of words: 640 | Number of pages: 3 |
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