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» Browse Science and Environment Term Papers
Energy Flow Systems
Number of Words: 1419 / Number of Pages: 6
... 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 and inefficient
use of energy. According to White, only two percent of water's potential energy
results in the work of erosion. The other ninety-eight percent of water's energy
was lost as water molecules rub against themselves, the river bed, and the river
banks. This energy was released as heat into the river.
Often the energy of flowing water was not recognized. There are
occasions when rivers do show their power is destructive way ...
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Down Syndrome 4
Number of Words: 1135 / Number of Pages: 5
... changed it simply to "Down
syndrome," while it still is called "Down's" in Europe.
In the first part of the twentieth century, there was much speculation of
the cause of Down syndrome. The first people to speculate that it might be
due to chromosomal abnormalities were Waardenberg and Bleyer in the
1930s. But it wasn't until 1959 that Jerome Lejeune and Patricia Jacobs,
working independently, first determined the cause to be trisomy of the 21st
chromosome. Cases of Down syndrome due to translocation and mosaicism
were described over the next three years.
The estimated incidence of Down sy ...
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The Tiger
Number of Words: 1086 / Number of Pages: 4
... 5 to 6
or jump as far as 10 meters. Tigers do not usually prey on people, but some do
become man eaters. If a Tiger becomes a man eater it is because of a wound,
weakness, or just because it is to old. The young accompany their mother on the
hunt when they are 5 to 6 months of age. Tigers begin to hunt alone when they
are just eleven months old. Before the young can hunt alone, the mother will
demonstrate how it is done(Comptons Interactive Encyclopedia 1993).
Tigers usually prey on deer wild cattle called gore, and wild pigs.
Whenever humans have domestic animals, Tigers will feed on cattle, h ...
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Experimental Protein
Number of Words: 3276 / Number of Pages: 12
... buffer did not produce protein bands. Proteins with huge molecular weight did not travel far from the gel while low molecular weight proteins traveled long distance . Overall banding contrast was compared between same sample with different transferred volumes. The protein bands of ADH were closely related to some of the bands of liver protein extract. ADH, which is derived from horse contains some of the protein that are related to the proteins found on cow's liver cells. Closely ranged Rf value is key to similarities that exists between protein bands based on their molecular weight. Th ...
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Flesh-eating Bacteria
Number of Words: 1749 / Number of Pages: 7
... never misused antibiotics, you could still become infected by bacterium most drugs won’t kill. For each drug, there are germs genetically programmed to survive- some w/ outer walls tough for antibiotic to cross, others with ways to dump the drugs back out before they can work, and yet others can inactivate the antibiotic. Even worse, by passing tiny packets of genetic material to other bacteria, these survivor germs sometimes also pass the formula for resistance to the other bacteria. The best way you can protect yourself and your family against drug-resistant bacteria is by using antibiotic ...
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Our Solar System At A Glance
Number of Words: 4469 / Number of Pages: 17
... automated spacecraft, then human-crewed
expeditions, to explore the Moon. Our automated machines have orbited and
landed on Venus and Mars; explored the Sun's environment; observed comets,
and made close-range surveys while flying past Mercury, Jupiter, Saturn,
Uranus and Neptune.
These travelers brought a quantum leap in our knowledge and
understanding of the solar system. Through the electronic sight and other
"senses" of our automated spacecraft, color and complexion have been given
to worlds that for centuries appeared to Earth-bound eyes as fuzzy disks
or indistinct points of light. And doze ...
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Black Holes
Number of Words: 3663 / Number of Pages: 14
... of the planet: if the planet is extremely massive, then its gravity is very strong, and the escape velocity is high. A lighter planet would have a smaller escape velocity. The escape velocity also depends on how far you are from the planet's center: the closer you are, the higher the escape velocity . The Earth's escape velocity is 11.2 kilometers per second (about 25,000 M.P.H.), while the Moon's is only 2.4 kilometers per second (about 5300 M.P.H.).We cannot see it, but radiation is emitted by any matter that gets swallowed by black hole in the form of X-rays. Matter usually orbits a black hole b ...
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Encephalitis -
Number of Words: 699 / Number of Pages: 3
... such as parplysis, speech changes, increased intracranial pressure, respiratory failure, seizure disorders, and shock can occur.
SIGNS AND SYMPTOMS
Mild cases absent superficial reflexes
Sudden fever *** exaggerated deep tendon reflexes
Poor appetite opisthotnos
Loss of energy nuchal rigidity
General sick feeling increases resp. tract problems
Severe Cases
High fever sore throat
Severe HA *** malaise
N/V *** muscle stiffness
Stiff neck *** photophobia
Pupils of different sizes visual disturbances
Confusion tremors
Disorien ...
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Effect Of Temp On Endo And Ectotherms (metabolism)
Number of Words: 1050 / Number of Pages: 4
... for an ideal metabolic rate (aquacult.htp).
In the following experiment, we will attempt to examine the relationship between metabolic rate and environmental temperature in both an ectoderm and an endotherm. I predict that for the ectotherm, the metabolic rate will increase as the outside environment temperature will increase. I also predict that the metabolic rate in the endotherm will remain relatively the same as the outside environment temperature changes. I also make the prediction that the ectotherm will have much lower metabolic rates than the endotherm.
The procedures for this experimen ...
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Hydrologic Cycle
Number of Words: 773 / Number of Pages: 3
... wetted. Then excess infiltration begins to move slowly downward to the water table. Once it reaches the water table, it is called ground water. Ground water continues to move downward and laterally through the subsurface. Eventually it discharges through hillside springs or seeps into streams, lakes, and the ocean where it is again evaporated to perpetuate the cycle. GROUND WATER AND SUBSURFACE WATER Most rock or soil near the earth's surface is composed of solids and voids. The voids are spaces between grains of sand, or cracks in dense rock. All water beneath the land surface occurs within such voi ...
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