Answer:
Five different forces have influenced human evolution: natural selection, random
genetic drift, mutation, population mating structure, and culture. All evolutionary biologists
agree on the first three of these forces, although there have been disputes at times about the
relative importance of each force. The fourth and fifth forces are new in the sense that they
are not explicated in more traditional texts. This is not an attempt to develop a “new”
theory of human evolution. Instead, the forces of population mating structure and culture
are arbitrary categorizations used to organize several different phenomena of human
evolution. Scientists agree on the phenomena themselves, although they do not always
organize them the same way.
Explanation:
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