Darwin emphasized that evolution via natural selection leads only to a) progress as defined by increasing heterogeneity. b) higher and lower forms within the same species of organism. c) the establishment of some societies that are more civilized than others. d) increasing adaptation between organisms and their given environment.

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Q: In Darwin's theory of natural selection, which of the following is a source of evolution: a.…

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Q: What mechanism did Darwin propose for evolution? What threeword phrase summarizes this mechanism?

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Q: Which of the following is NOT a characteristic of natural selection? a) Variation exists among…

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Pre-Darwinian Concepts