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» Science Essays and Papers
Classification
<view this essay>.... and differences among organisms. Such categories form a kind
of pyramid, or hierarchy, in which the different levels should represent
the different degrees of evolutionary relationship. The hierarchy extends
upward from several million species, each made up of individual organisms
that are closely related, to a few kingdoms, each containing large
assemblages of organisms, many of which are only distantly related.
Carolus Linnaeus is probably the single most dominant figure in systematic
classification. Born in 1707, he had a mind that was orderly to the extreme.
People sent him plants from all over the world, and he would devise a way
to relate them. At the ag .....
Number of words: 1136 | Number of pages: 5 |
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Endangered Species
<view this essay>.... today it might be extinct tomorrow or extinct in the future. Or it might not happen like that. If you leave it alone and do not harm it, it might have baby’s and have more of its kind. A species is named endangered when of its kind occurs in a low number. About 1000 species in the world are named endangered, or are in threat to be extinct. I never knew that some kinds of birds were in danger. We can help these animals and plants by making laws that you are not allowed to hunt or kill any animal that is in danger of extinction.
Government Involvement
Only since the 19th century has there been worldwide concern about the case of species in th .....
Number of words: 1552 | Number of pages: 6 |
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Diabetes 2
<view this essay>.... there had been few or none. Since then, in a report in the May 1997 Journal of Clinical Investigations, the researchers have identified the gene that Ilotropin triggers, the one involved in regenerating the islet cells. If the human version of the same gene could be turned on in similar fashion, type I insulin dependent diabetics and type II's who inject insulin might have their natural insulin-producing apparatus restored.
What is Diabetes? Well, this disease is known as "diabetes mellitus," diabetes from the Greek word meaning excessive urination, a symptom the Greeks noticed, and mellitus, from the Latin for honey, which is because diabetic urine is fil .....
Number of words: 697 | Number of pages: 3 |
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Alternative Energy
<view this essay>.... more efficiently. However this method only supplies enough energy for activities such as
washing and bathing. The solar panels generate "low grade" heat, that is, they generate low temperatures for the amount of heat
needed in a day. In order to generate "high grade" heat, intense enough to convert water into high-pressure steam which can then
be used to turn electric generators there must be another method. The concentrated beams of sunlight are collected in a device
called a solar furnace, which acts on the same principles as a large magnifying glass. The solar furnace takes the sunlight from a
large area and by the use of lenses and mirrors can focus the .....
Number of words: 339 | Number of pages: 2 |
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Hurricanes A-level
<view this essay>.... surface. For their to be enough energy for the hurricane to move, it is essential that there is a considerable source of heat. This is necessary to maintain a consistent supply of rising air in the form of currents. There needs to be a large supply of moisture, as it is necessary for condensation to take place in order to release latent heat and it is the latent heat that initiates the development of the storm and consequently produces heavy rainfall.
When the hurricane reaches its maturity an eye develops in the centre, in the eye there is a relative area of subsiding pressure. Which is what causes clear skies, anomalous high temperatures and light .....
Number of words: 882 | Number of pages: 4 |
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Evolution 2
<view this essay>.... on us. Comfort, necessity and luxury are a constantly changing aspect of our society. As we look deeper into the constant changing of what a person needs to be an active member of a community we notice the continuos alteration of what exactly defines a comfort a necessity and a luxury. Comfort by definition is a condition of pleasurable ease or well being. By that definition there are endless numbers of object that could serve as a comfort. Take public transportation for example. The thought of having the train that takes us into the city is a commonly know option. Not always have people been able to choose public transportation as a method of getting t .....
Number of words: 927 | Number of pages: 4 |
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Energy Flow Systems
<view this essay>.... fat by salmon for
their journey upstream.” White notes that energy is as concrete as salmon,
human bodies, and the Grand Coulee Dam. White wants his readers to think about
nature and its relationship with humanity.
White explains how the river is energy. The Columbia River works as
gravity pulls it to the Pacific Ocean. The Columbia is continuously cutting
into the terrain that it flows through. Over millions of years water rushed
through the Columbia Basin to form the Columbia River. Water carries soil, silt,
and debris downstream. The constant movement of material in the river cuts and
shapes the river basin into the land. This movement is a slow an .....
Number of words: 1419 | Number of pages: 6 |
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Computer Viruses
<view this essay>.... are self-replicating computer programs that disrupt the computer’s normal operation by means of interfering with its hardware and operating system. Viruses are designed to replicate and to avoid detection.
In recent years have caused a great deal of damage to personal computers and computer systems around the world. The damage can be extensive; mostly due to the loss of time spent recovering the infected data. A computer virus in a system is one of the worst things that can happen to a computer user. Still, many specialists insist that it is possible to use the replication mechanism of for some useful and beneficial purposes. In this paper I will examine .....
Number of words: 3907 | Number of pages: 15 |
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