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Essay On Evolution
Beginning of paper
There are many mechanisms that lead to evolutionary change. One of the
most important mechanism in evolution is natural selection which is the
differential success in the reproduction of different phenotypes resulting from
the interaction of organisms with their environment. Natural selection occurs
when a environment makes a individual .... Middle of paper
.... flow which is
when a population may gain or lose alleles by the migration of fertile
individuals between populations. This may cause the allele frequencies in a gene
pool to change and allow the organism to evolve. The most obvious mechanism
would have to be mutation that arises in the gene pool of a population or
individual. It is also the original source of the genetic variation that serves
as raw material for natural selection.
Not only are ....
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Number of words: 913
Number of pages: 4 (approx. 250 words per double-spaced page)
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