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natural selection

A natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment.



Context:

Darwin's explanation for the diversity of animals was based on his theory of natural selection. He reasoned that the more different the members of a species became, the better able they would be to take advantage of diversified places in nature.


heredity

The sum of the qualities genetically derived from one's ancestors.



Context:

In the random shuffle of heredity, each new individual is born slightly different from others.





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