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... Gilbert had extremely powerful winds that reached 160 knots which is about 175 mph and gusts up to 121 mph (Stengel 18). At 10, 000 feet, Gilbert's Counter clockwise winds reached up to 200 miles per hour, and at ground level the winds were around 175 mph(Stengel 17). With winds that strong, almost nothing could stop that storm. When the winds began to spread out over a large area, they stirred the Atlantic waters and brought cool water underneath the earth's surface; therefore, causing a reduction in the amount of rapid showers and thunderstorms (Sheets 1). Water was another contributing factor in the destruction caused by Hurricane Gilbert. Hurricane Gilbert formed in the same ...
... non-target or target. Target effects are those that can kill off the entire population. Non-target effects are those that effects a significant number of individuals and spreads over to other individuals, such is the case when crop dusters spread herbicides, insecticides. Next we look at population damage by a pollutant, which in turn has a detrimental effect on the ecosystem in several ways. First, by the killing of an entire population by a pollutant, it offsets the food chain and potentially kills off other species that depended on that organism for food. Such is the case when a keystone species is killed. If predators were the dominant species high on the food chain, the organisms that ...
... the perceived gap between cloning and our nature are not so distant, as cloning has been the means by which humankind has cultivated flora for a millennia. In addition, selective breeding has been the means by which humankind has manipulated fauna for its own ends. In both cases genetic manipulation does serve humanity on many practical levels. Secondly, humankind has genetically engineered many species through selective breeding. The potential of cloning in food production is, if not unclear, certainly unknown to most people. Selective breeding of flora and fauna has continued for eons. Only breeds of preference have been maintained as useful for humankind. The word ‘clone’ finds its ...
... risk nationally. Its federal laws are enforced fairly and effectively to protect human and environment. Environmental policy is based upon the concern for natural resources, human health, economic growth, energy, transportation, agriculture, industry, and international trade. All parts of the society are involved. The EPA is responsible in making our communities and ecosystems diverse, sustainable and economically productive. Overall, the United States plays a leadership role locally and globally. With its policies, the EPA establishes programs to promote water pollution prevention. This was regenerated from the Pollution Prevention Act of 1990. It declares the national policy of ...
... an it is no longer supported by the release of nuclear energy. If the star is particularly massive, then its core will collapse and in so doing will release a huge amount of energy. This will cause a blast waver that ejects the stars envelope into interstellar space. The result of the collapse may be, in some cases, a rapidly rotating neutron start that can be observed many years later as a radio pulsar. As a result of gravitational forces acting against the nuclear structure of the core of a fuel depleted star, tremendous shock wavers are generated which cause the outside layers of the star to be blown away from the core. This can happen in one of two ways depending on the type of supe ...
... is working and where replication is taking place is known as the DNA fork. The polymerase enzyme helps the nitrogenous base in a given nucleotide to pick up and attach to a complementary base at the 3' end of the DNA template. The 5'-3' strand of template is duplicated in short segments called Okazaki fragments. Ligase is the enzyme that joins the fragments together. The end product of this is an exact copy of the original DNA. DNA must also be stable, but able to be changed. We know that DNA is stable because of the tightly wound, double helix ladder formation. Also the bonds that keep everything together are hydrogen bonds, one of the stronger bonds. We also know that DNA can be cha ...
... centralized military system and operating within a strong political authority. The workers back then where well disciplined and each individual new his/her role. The workers were among the best treated and loyal to the Russian military. They are now suffering hardships and are forced to scavenge anything to pay for their food, rent and social services. A new trend is already occurring with some of the workers . There are those that will seek employment out of the nuclear field and in the commercial sector, where salaries are higher. Then the unfortunate who lose their jobs and find no work. The scarier thought is that the uncontempt people in Russia's nuclear complex with access to ...
... major structural change, and the fossils occur roughly (but often not exactly) in the expected order. However, usually there are still gaps between each of the groups. Sometimes the individual specimens are not thought to be directly ancestral to the next-youngest fossils (e.g. they may be "cousins"" or "uncles" rather than "parents"). However they are assumed to be closely related to the actual ancestor, since the have similar intermediate characteristics. Where Does It All Begin ? Mammals were derived during the Triassic Period ((from 245 to 208 million years ago) It began with relatively warm and wet conditions, but as it progressed conditions became increasingly hot and dry.) from m ...
... evolution, or natural selection. The current global extinction rate is estimated at about 20,000 species per year, exponentially greater than the background extinction rate (17). Many biologists believe that we are in the middle of the greatest mass extinction episode since the disappearance of the dinosaurs 65 million years ago (18). The survival of ecosystems (plant and animal communities and their physical surroundings) such as forests, coral reefs, or wetlands depend on their biodiversity or variety of plants, animals, and habitats, as well as the many interactions among these species. The removal or disappearance of one or several species may irreversibly damage the ecosystems ...
... the unified theory, which is a theory summarizing the entire of the physical world; a theory that would stand as a complete, consistent theory of the physical interactions that would describe all possible observations. Our attempts at modeling physical reality normally consists of two parts: a) A set of local laws that are obeyed by the various physical quantities, formulated in terms of differential equations, and b) Sets of boundary conditions that tell us the state of some regions of the universe at a certain time and what effects propagate into it subsequently from the rest of the universe. Presently, physicist are still trying to unify two separate theories to describe everything i ...
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