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Essay On Evolution
Beginning of essay
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 essay
....vidence
to prove that these mechanisms are valid and have helped create the genetic
variety of species that exists today. Antibiotic resistance in bacteria is one
example of evolutionary evidence. In the 1950's, Japanese physicians realized
that a antibiotic given to patients who had a infection that caused severe
diarrhea was not responding. Many years later, scientists found out that a
certain strain of bacteria called Shigella contained the specific gene that
conferred antibiotic resistance.... |
| Number of words: 913 |
Approximate pages: 4 |
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