why natural selection leads to population increase over generations how natural selection maintains and changes the makeup of a population why natural selection created the large brain size in human beings how natural selection promotes individuals who care for their offspring

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Naturalselectiondescribesthebiologicalprocessin

Natural selection favors adoptions that help a species to survive. Natural selection works against extreme changes in a species. Natural selection allows helpful new traits to spread through a population. Natural selection occurs in periods of severe environmental disturbances.

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Below is a selection from a popular science book. If blood is red，why are vein...

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