What is biological evolution?

Biology
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What is biological evolution?

The development of traits that organisms need in order to become more complex.
Gene changes in populations over many generations.
The change that occurs in individuals as they try to survive in their environment.
The steps by which the first life was created on Earth from random molecules.

Jul 1st, 2015

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B - Gene Changes in Populations over many generations. 

Biological evolution is the process through which the characteristics of organisms change over successive generations, by means of genetic variation and natural selection. It is most commonly defined as "changes in gene frequencies in populations."

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Jul 1st, 2015

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