... Cattle are also a major cause of desertification around the planet. Today about 1.3 billion cattle are trampling and stripping much of the vegetative cover from the earth's remaining grasslands. Each animal eats its way through 900 pounds of vegetation a month. Without plants to anchor the soil, absorb the water, and recycle the nutrients, the land has become increasingly vulnerable to wind and water erosion. More than 60 percent of the world's rangeland has been damaged by overgrazing during the past half century. Cattle ranching has also been linked to Global Warming. The grain-fed-cattle complex is now a significant factor in the emission of three of the ...
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... fire can be treated as just one of the many factors in an environment. It compares with droughts, floods, hurricanes and other physical disturbances because of the direct impact it makes on organisms. Unlike these physical factors, however, fire as a disturbing force is itself influenced by the biota, particularly the plant community. Alteration of the vegetation by any number of factors can influence the nature of a subsequent fire. Fire has similarities to grazing as a force on vegetation because of such feedback effects (Whelan, 1995, 20). Fire History When cavemen learned to make and use fire, they could start to live in civilized ways. With fire, th ...
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... there is a great possibility of that trait being passed down from generation to generation. Experiments conducted led to the possible conclusion that the region Xq28 carries a gene influencing male sexual orientation. However, there are a few flaws to their interpretation of the results. Among them are stated in the article. A replication of the experiment is necessary, the separation of the particular gene has not been achieved, and the importance of the region has not yet been determined. Moreover, the supposed gene that influences homosexuality suggests that it acts indirectly on the choice of their sexual orientation. LeVay and Hamer mention the ...
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... a force table. Weight hangers were attached to two strings tied to the center ring of the force table, where two slotted masses, one 200g and the other 249g were hung according to their specified directions. The center ring was anchored to the nail positioned at the platform’s center while the upper ring of the spring scale was attached to the free end of the third ring. After attaching the spring balance, its hook was pulled and the reading on the scale and the direction of the pull at which the two forces (hanging mass) are “balanced.” “Balance” was determined. II. Results and Discussion Table 1. Time, distance, velocity and acceleration measurements for a ...
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... be necessary. Feedings would also be needed on a less frequent basis since the Woolly Mammoth, much like today's camels, keeps under its sloping back a thick layer of blubber as nutrition when food was not needed. The problem in keeping a creature such as the Woolly Mammoth in a zoo- like surrounding would be poachers. Due to the endangerment of such a magnificent species, poachers of pelts and ivory would most certainly be after it's huge tusks and thick furs, so it would be necessary to post guards around it's cage at all times. A large-scale habitat would be constructed for this creature since, during the period it lived, the Pleistocene, there were no r ...
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... century (1:3). Later, in A.D. 129-200, the physician, Galen, used five pigs to investigate the effects of several nerves (1:4). He is considered to be the founder of experimental physiology. During the Renaissance Era, Andreas Vesalius conducted experiments on monkeys, swine, and goats (1:3). By the late eighteenth century, the methods of scientific discovery were changer to experimentation of live animals by two French physiologists, Claude Bernard and Francious Magnedie. They revolutionized methods of scientific discovery by establishing live animal as common practice (1:4). Claude Bernard believed that in order for medicine to progress, there must be experi ...
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... life. It is an attribute characterized by sensation and voluntary movement which described the difference between normal waking state of animals and men and their condition when asleep.2 Other descriptions included an analysis of consciousness as a form of relationship or act of the mind toward objects in nature, and a view that consciousness was a continuous field or stream of essentially mental "sense data." The method believed by most early writers in determining consciousness was introspection—looking within one’s own mind to discover the laws of it’s operation. This belief was limited when it was apparent when observationalists could not agree on observ ...
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... Deforestation is the large-scale removal of forests. Why does deforestation occur? There are a many answers to that question but the main ones are: Ø For agricultural purposes eg space for building. (overpopulation) Trees are logged for the purpose of space. In this day and age the human race is multiplying and therefore we require more space to expand cites and build more houses. To do this world government cut down any forests in their way. Ø Industrial commercial purposes Big industries also contribute to deforestation. EG "Macdonald's uses 800 square miles of trees just for the paper packaging of their products". That is an appalling amount of trees t ...
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... so with a CD-ROM drive and a antenna, you can hook up your laptop to your car with an antenna and have the same results as the ones that come with cars. Just because we have these in our cars however, doesn't mean that we won't get lost, but it is more difficult to get lost, and it's definetly easier to find your way around if you do get lost. When get in your car, all you have to do is type in your destination and the computer will show you where your destination is, aswell as how to get there and the easiest and fastest way to get there. These systems are being used to make everything more convenient, easier, safer, and quicker for not only the user of the na ...
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... Life is an opportunity given to soul for further enhancement. Because the heavens are in constant motion, and because this motion is quite ordered and exact, it is possible to project the positions of the sun, moon, and planets for any given time. Astrologers use this information to draw-up a horoscope and forecast the "influences" that will affect the soul at that time. Astrologers usually do not predict actual events in the future. They can only say what might happen, or could happen, but not what will happen--much like a weather forecast; although many psychics do make predictions, and astrology is the tool they use to focus their abilities. Another common feat ...
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