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Science and Nature Term Papers and Reports |
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Silverfish
308 Words - 2 Pages.... Phylum: Arthropoda
Sub-phylum: Chelicerata Class: Insecta Order: Thysanum Family: Lepismati
Genus: Metalus Species: Gerrainus
LIFE CYCLE: Silverfish undergo incomplete metamorphosis. Adults lay eggs in
small groups containing a few to 50 eggs. The eggs are very small and deposited
in cracks and crevices. A female normally lays less than 100 eggs during her
life span . Under ideal conditions, the eggs hatch in two weeks, but may take up
to two months to hatch. The young nymphs are very much like the adults except
for size. Several years are required before they are sexually mature, and they
must mate after each molt if viable eggs are to be produced. Popul ....
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The Invention Of The Telegram
1113 Words - 5 Pages.... reconquer the lost territory in Texas, New Mexico, and Arizona. The settlement in detail is left to you. You will inform the President of the above most secretily as soon as the outbreak of war with the United States of America is certain and add the suggestion that he should, on his own initiative , invite Japan to immediate adherence and at the same time mediate between Japan and ourselves. Please call the President's attention to the fact that the ruthless employment of our submarines now follows the prospect of compelling England in a few months to make peace" - ZIMMERMANN
Considering this telegram was sent to Mexico, it shows Mexican importance in this war. Mexico had ....
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Bipolar Disorder 2
1764 Words - 7 Pages.... a hell of alot of symptoms that can be broken into manic and depressive moods. The depressive episodes are characterized by bad feelings of sadness and despair that can become feelings of hopelessness and helplessness. Some of the symptoms of a depressive episode include anhedonia, disturbances in sleep and appetite, psycomoter retardation, loss of energy, feelings of worthlessness, guilt, difficulty thinking, indecision, and recurrent thoughts of death and suicide. The manic moods are made up by elevated or irritable mood, increased energy, decreased need for sleep, poor judgment and insight, and often reckless or irresponsible behavior. Bipolar affective disorder affects ....
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Role Of Government Intervention In Environmental Issues
824 Words - 3 Pages.... Options of Pollution RulesS. Although pollution is detrimental to
our environment, you have to take into account that it is almost impossible to
entirely prevent pollution. This is scientifically impossible and it would have
severely negative economic impact on the industries. So the core issue becomes
the fact no matter what, there will always be pollution, as long as these
industries exist. So we should focus on how we can minimize this and yet at the
same time have an efficient market system? Furthermore, we should also focus on
how we can accomplish this so that sustainable growth and development can take
place. So there is definitely a need for some form of governm ....
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Archaeology
812 Words - 3 Pages.... interpret past human behavior because the products of human action usually suggest repetitiveness or a pattern of activity that can be discerned by the archaeologist. For example in the Olsen-Chubbuck site in Colorado, a bison graveyard was discovered of 190 bison. The pattern or relationship between the bones and how they were found gives the archaeologist clues as to how the bison were butchered. Some bones were found with spear points in the bodies, some whole skeletons were found closer to the bottom, and some bones were scattered all over. It can be inferred from the patterning of the bison bones that they were butchered differently.
Middle range theory also plays a ....
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Leukemia
457 Words - 2 Pages.... defects, radiation, viruses, and chemicals. Leukemia
is not inherited and is not contagious.
There are two major types of Leukemia, Lymphocytic and
Granulocytic. In Lymphocytic Leukemia white blood cells
known as Lymphocytes, which are made in the Lymph glands
and bone marrow are abnormal or immature. In Granulocytic
Leukemia this causes an increase in white blood cells known
as granulocytes. Granulocytes are made in the bone marrow,
and other tissue. Granulocytes that are affected by
leukemia cannot fight of infections.
There are two ways in which leukemia can occur. One is
acute, and the other is chronic. Acute leukemia is found
most in children. ....
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Effects Of Excessive Pesticide
5605 Words - 21 Pages.... which are now composed of synthetic chemicals, and it is these substances - very beneficial from the economic and production aspects of farming - which can pose risks to human health and the environment if not properly used.
Pest problems are not new; in fact, they have been around as long as agriculture itself. But the pest pressure faced by farmers is now as great as it ever was: the world's fast-growing human population needs to be fed from an always shrinking base of agricultural land, and the substantial damage that can be inflicted by pests (e.g. insects, diseases, weeds, rodents, birds) on crops is the margin between a good harvest and a bad one. Pests can reduce the ....
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Hepatitis B Virus
247 Words - 1 Pages.... in ducks, ground squirrels and woodchucks. The HBV genome has four genes: pol, env, pre-core and X that respectively encode the viral DNA-polymerase, envelope protein, pre-core protein (which is processed to viral capsid) and protein X. The function of protein X is not clear but it may be involved in the activation of host cell genes and the development of cancer.
Hepatitis B is a serious public health problem that affects people of all ages in the United States and around the world. Each year, more than 240,000 people contract hepatitis B in the United States. A highly infectious virus that attacks the liver causes the disease. (HBV) infection can lead to severe illness, l ....
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