Natural Selection First described in full by Charles Darwin, natural selection refers to the process by which organisms evolve by adapting to their environments. Natural selection does not occur instantly in response to an environmental change, however. Rather, natural selection occurs over the course of several successive generations. Those organisms that successfully survive the environmental changes due to their inherited traits will pass on their genes to their offspring. Thus, only those organisms with hardy genes will survive; hence the phrase "survival of the fittest." While natural selection does occur unaided by human beings in the natural world, humans are beginning to alter the course of natural evolution through the creation and implementation of certain chemical products. Moreover, environmental pollution and other human factors impact the process of natural selection and evolution in the plant and animal kingdoms. Chemical products such as antibiotics, pesticides, and herbicides in particular threaten to create...
In the search for weed-free fields and disease-free bodies, human beings may be unwittingly creating "super bugs," or viruses that are virtually indestructible. Therefore, a thorough understanding of the basics of natural selection is important in understanding the full environmental and human health ramifications of using antibiotics, pesticides, herbicides, and other chemical means of killing off unwanted organisms and bacteria.
Evolution The book Why Evolution is True by Jerry Coyne presents a cogent case for evolution, a concept that can be controversial for some but accepted fact for others. This paper will work through the book -- the case that Coyne makes -- and offer reflections on my own journey of understanding the concept of evolution and its manifestation in the natural world. Understanding Evolution Evolution is not "fact," so much as a
Police Selection The Selection Process for Aspirant State Police Officers Becoming a police officer at the state level requires dedication, courage and tenacity. Indeed, the process for state officers can often be more streamlined, bureaucratic and selective than that engaged at the municipal or local levels. Therefore, becoming a State Trooper will call for a commitment to the recruitment, preparation, testing, and training processes that are streamlined and specific to each
Kin Selection The organization and functioning of human and animal societies has long been the subject of intense investigations by natural scientists, sociologists and geneticists. Darwin, who laid the foundation for modern theory of evolution, suggested 'kin selection' as an explanation for the existence of sterile females, the worker caste, in social insects like ants, bees and termites. Later, W.D. Hamilton mathematically established the Theory of Kin Selection as a mechanism
Evaluations are then to be reviewed by nurses and action evaluations drafted. Attendance Policy Under no circumstances can any portion of this course be missed. An absence at any of the training sessions will result in termination from the course and possible termination from current labor and delivery rounds until the course is retaken. Tardiness is also not permitted. Anyone who is more than ten minutes late for a session will
The attitude of being the "Little Emperor." Albeit, normally disappears by the time the child from the one child family begins working when an adult. Child psychologist David Elkind Ph.D. (2009), Professor Emeritus of Child Development at Tufts University in Medford, Massachusetts, asserts in the article, "The only child," that many of the currently adolescent singletons regularly presenting with a variety of social and behavioral problems (¶ 1). This social
LNG Liquefied Natural Gas Liquefied Natural Gas LNG LNG (liquefied natural gas) Why using LNG (liquefied natural gas) as a marine fuel is an innovative subject? Liquefied natural gas (LNG) is a clean-burning fuel that is obvious, colorless, fragrance-free, noncorrosive, and harmless. One cubic meter of LNG is equal to 600 cubic meters of natural gas at atmospheric pressure, thus providing for better storage ability and easier transporting. LNG is presently less costly than
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