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bio 117 Exam 1 | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+
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evolution Correct Answer: a change in a population over time Natural selection Correct Answer: the process by which populations change over time What is necessary for natural selection to occur? Correct Answer: traits within a population vary -some individuals leave more offspring than others (fitness) Mechanisms of evolutionary change Correct Answer: Natural selection, genetic drift, gene flow and mutation Fitness Correct Answer: the ability of an individual to produce offspring relative to others of the same species 2 Types of selection Correct Answer: directional, stabilizing and disruptive Directional selection
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