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» Browse Science and Environment Term Papers
Adrenal Glands
Number of Words: 1019 / Number of Pages: 4
... vessels. Norepinephrine is formed by intravenous infusion to combat the fall in blood pressure associated with types of shock. Norepinephrine is formed in the body from the amino acid tyrosine, and epinephrine is formed from norepinephrine.
Mineralocorticoids steroids control the overall body fluid. Mineralocorticoids are critical to regulate concentrations of minerals in extracellular fluids. The major target of aldosterone is the distal tubule of the kidneys. There it stimulates the exchange of sodium and potassium. It reaches the target goal by the distal tubule of the kidneys.
Glucocorticoid ...
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Bacillus Anthracis
Number of Words: 296 / Number of Pages: 2
... it into animals. was the first bacterium shown to be the cause of a disease. is a very large, gram positive sporeforming rod. The organism is cultivated on ordinary nutrient medium and grows best aerobically, but can also multiply under anaerobic conditions. The disease, Anthrax, is very deadly but it is rare. The risk of infection is 1/100,000. The disease is acquired when spores from a contaminated animal carcass inoculate an open wound. Then, the spores germinate and invade the blood stream, leading to death within 48 hours. is classified as a harmful, pathogenic bacterium. There is a vaccine for ...
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Earthquakes
Number of Words: 1146 / Number of Pages: 5
... currents which is the upward movement of heated particles rising from the earth's molten core. As the plates are driven against each other one will try to and eventually will slip underneath the other. When plates move quickly an earthquake is the result.
Before the availability of instruments capable of a quantitative measure of their magnitude, were classified according to their intensity. In 1931 a
seismologist came up with twelve degrees of intensity ranging from I (felt only by a few) to XII (total damage) this was called a Modified Mercalli scale. However according to Dr. Pignataro "Even ...
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Creatine
Number of Words: 1718 / Number of Pages: 7
... occur. monohydrate is a precursor to phosphate. By supplementing with CM, CP levels in muscle apparently are maximized, and more muscular work can occur, since there are greater energy reserves to use. Approximately 95% of the body's supply is found in the skeletal muscles. The remaining 5% are scattered throughout the rest of the body, with the highest concentrations in the heart, brain and testes. A skeletal muscle itself does not produce , but utilizes the originating in the liver and kidneys. The human body gets most of the it needs from food or dietary supplement ...
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Everglade Dilemma
Number of Words: 265 / Number of Pages: 1
... of environmental and geologic features present at the same time. Modern life is still effected by the different environmental factors and systems that occur worldwide. Each system reaction causes and equal and opposite reaction in an another system. This cause and effect is demonstrated by many of the earth's environmental systems. Deep in the heart of Florida lies a natural resource known as the everglades. This particular system is extremely complex and one that follows the action-reaction principle. Both the correct environmental features, as well as the right rock layers and substrates created t ...
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Destruction Of The Ozone Layer
Number of Words: 1143 / Number of Pages: 5
... CFCs (chloroflurocarbons) used in air-
conditioners and refrigerators are breaking it down. This is the ozone
thinning theory: "CFCs release chlorine into the stratosphere... leading to
ozone destruction and exposing the planet to harmful ultraviolet rays."
Critics who discount the thinning theory still say that chlorine comes from
natural sources like volcanic eruptions and does no permanent damage
(Brooks 422).
NASA researches claim that they have evidence that shows CFCs are
to blame for ozone depletion. Natural chlorine is only about 1/5 of the
chlorine in the stratosphere because most of it ...
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History Of Birth Control
Number of Words: 455 / Number of Pages: 2
... A second assumption is that
ovulation occurs 14 days before the onset of the next menstruation. The rhythm method is the most commonly used of the natural methods.
To be used successfully a record should be kept for at least six menstrual cycles. The fertile period is then defined by a set of rules for example: The length of the shortest cycle less 18 days marking the start of the fertile period and the length of the longest cycle less 11 days marking the end of the fertile period. This is the only birth control method that has received the Catholic Church’s seal of approval.
The next natura ...
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Air Pollution
Number of Words: 320 / Number of Pages: 2
... in the burning of coal and oil since the late 1940s
has led to increasing concentrations of carbon dioxide. The resulting greenhouse effect has
reduced the escape of infrared radiation from the earth, causing a possible global warming
trend.
The Prevention of Air Pollution
To cut down on all the pollution being released into the air, we have removed the
pollutant before materials are used, removed the pollutant after it is formed, or altered the
process to lower pollutant levels produced.
In the United States, the Clean Air Act of 1967 is the legal basis for air-pollution
control. The Environmen ...
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Chaparral
Number of Words: 365 / Number of Pages: 2
... fires. The leaves of the plants are mostly thickor needle like so it can reduce water loss through evaporation. The chamise, for example, has small, needle-like leaves that store up and save the moisture in the plant.
The is the home of many species of reptiles, birds, and mammals. There are animals such as the alligator lizard, western rattlesnake, quail, roadrunner, scrub jay, brush rabbit, coyote, and mule deer. Some species are restricted to habitats only, but others inhabit adjacent vegetation types as well.
The environment is very harsh. Annual rainfall ranges from 12 to 24 inches ...
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Atmospheric Circulation And More
Number of Words: 685 / Number of Pages: 3
... the atmosphere. The equatorial belt of variable winds and
calms ranges from 5 degrees north to 5 degrees south. This wind belt is
characterized by weak winds and low pressure from the inter tropical
convergence zone. As you go further north or south you encounter the
Hadley Cells. Hadley cell circulation is caused by the movement of high
pressure from the latitudes at 5 to 30 degrees north and 5 to 30 degrees
south to low pressure areas around the equator.
The movement of air from high pressure to low pressure causes
convergence. This convergence generates the producti ...
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