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» Browse Science and Environment Term Papers
Genetic Engineering
Number of Words: 1118 / Number of Pages: 5
... could bring wonders to many peoples lives.
The first form of began with a man named Mendel, a monk in the late nineteenth century. He was the first to even formulate the concept of the gene from his experiments on pea plants. Since Mendel, other scientists have continued in agricultural engineering, a type of engineering that deals with the cross breeding of plants and cattle to maximize their productivity. Through time geneticists have continued to find better methods and strategies for improving the quantity of food from plants and improving the amount of milk and meat that cattle produce. Wit ...
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Mescaline
Number of Words: 673 / Number of Pages: 3
... do increase with higher dosages.
A light dose (100-200mg) can give the user feelings of giddiness or anxiety,
and a moderate dose of Mescaline (200-300mg) begins to impair the senses.
Strong doses (300-500mg) will induce hallucinations and effect the user's
perceptions of color, time, and space. Heavy does of Mescaline (500-700mg)
and frequent use of mescaline will cause symptoms of schizophrenia,
psychotic episodes, and may be fatal. At any point the user may also feel
the effects of nausea, dizziness, depressed or increased breathing, as well
as increased heart rate and blood pressure. Long ...
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Dna And Forensics
Number of Words: 666 / Number of Pages: 3
... DNA is everywhere in a persons body, and can not be replicated. It is unique to every person, but all blood relatives have similar qualities that make them identifiable. (Joe Mickel and John F. Fischer, 1998)
DNA stands for deoxyribonucleic acid, and it basically looks like a twisted ladder, or a double helix with rungs or base pairs. Guanine (G), Adenine (A), Thymine (T), and Cytosine (C) are the four bases that make up the base pairs. The bases don't just pair with any other bases, there are certain predictable combinations: A with T and G with C, and these are true to any DNA. The human body ...
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American Pit Bull Terrier
Number of Words: 2848 / Number of Pages: 11
... occasions that Molly is the best dog he has ever had, and believe me, he has had many. The point is, APBT get a bad name because of the people who own them. In doing research for this paper I have become deeply fascinated with this breed and actually understand a great deal more about the APBT than the average person. But to understand more about the APBT, you must understand its history and its impact on society.
The (APBT) is a descendent of the original English bull-baiting Bulldog and has historically been bred with working/performance goals in mind ( Stahlkuppe p.7). The challenge of describi ...
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Gold 2
Number of Words: 732 / Number of Pages: 3
... – electronics, jewelry, coins
? Obtained From – crust of the earth, copper ores
Atomic and Chemical Properties:
In it’s usual state – atomic mass number 197 – gold is stable. However, there are radioactive (unstable) isotopes of mass number 186 to 196 and 198 to 203. Gold normally exhibits a chemical valence of one or three.
Gold is the “noblest” of the noble metals (gold, platinum, palladium, and rhodium), so termed because of their inertness, or reluctance to enter into chemical reactions. Gold will not react with common acids but is attacked by a ...
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Environment Report: Tidal Power In The Bay Of Fundy
Number of Words: 1554 / Number of Pages: 6
... a tidal range varying from 15 to 18 feet, depending on the type
of tides. High - water heights vary from 22 to 28 feet and low - water heights
vary from 0 to 7 feet above chart data. Because of these semi - diurnal tides
and the action of the St John River, slack water in the Habour occurs at
approximately tides and not at high or low water as would be the case at other
parts.
THE RHYTHMIC RISE AND FALL
In the Bay of Fundy, the tides are spectacularly large. While the rise
and fall of sea level due to tides is the most apparent aspect, it is also the
tidal currents that direct magnification of tides ...
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Acid Rain Legislation
Number of Words: 824 / Number of Pages: 3
... has prompted legislation of industrial emissions
from governments is because of the negative effects they can have on the
environment. Acid rain is harmful to the environment because of it's low pH.
It can harm the biotic components of earth, and also the abiotic components.
It's high acidity degrades soil to the point where it cannot support any type of
plant life. Trees in forests are killed over long-term exposure. When these
trees are killed, an imbalance in the hydrologic cycle can occur. Without
living trees to consume the precipitate, it must be consumed by the earth or any
other plants. T ...
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Involvement Of K+ In Leaf Movements During Suntracking
Number of Words: 2307 / Number of Pages: 9
... water loss by reducing the amount of light absorbed
by the leaves; the leaves orient themselves parallel to the sun’s rays. Plants
that exhibit paraheliotropic behavior usually do so at midday, when the sun’s
rays are perpendicular to the ground. This reorientation takes place only in
leaves of plants that are capable of nastic light-driven movements, such as the
trifoliate leaf of Erythrina spp. (Herbert 1984). However, this phenomenon has
been observed in other legume species that exhibit diaheliotropic leaf movement
as well. Their movement is temporarily transformed from diaheliotropic to
par ...
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Apollo 13 (AS-508): Houston, We Have A Problem.
Number of Words: 553 / Number of Pages: 3
... the cryogenic oxygen tank 2 relief valve full-flow conditions
of 1008 psi, the pressure began decreasing for about 9 seconds, at which time
the relief valve probably reseated, causing the pressure to rise again
momentarily. About a quarter of a second later, a vibration disturbance was
noted on the command module accelerometers.
The next series of events occurred within a fraction of a second between
the accelerometer disturbances and the data loss. A tank line burst, because of
heat, in the vacuum jacket pressurizing the annulus and, in turn, causing the
blow-out plug on the vacuum jacket t ...
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Goundwater
Number of Words: 2024 / Number of Pages: 8
... near your well becomes polluted, the pollution may seep into the groundwater feeding your well.
The purpose of this project is to explore the subject of groundwater, its place in the water cycle, how it seeps through the ground and how it accumulates in underground pockets called aquifers. The project will also examine the many uses of groundwater in agriculture as well as environmental problems that are presently threatening the quantity and quality of groundwater reserves.
THE WATER CYCLE
The water cycle is a constant movement of water in the air, in the ground and on the surface of the Earth. ...
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