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 occur ....
Middle of paper
.... error. Genetic drift usually occurs in small populations that contain
less than 100 individuals, but in large populations drift may have no
significant effect on the population. Another mechanism is gene 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 t ....
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Word count: 913
Page count: 4 (approximately 250 words per page)
