Biology, 16.10.2019 16:00, Isaiahtate053

Which one of the following criteria is necessary for natural selection to occur?

a. individuals show no variation in fitness levels. b. individuals have the same adaptations. c. enough resources exist for individuals to survive and thrive. d. a struggle for existence is apparent.

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Which one of the following criteria is necessary for natural selection to occur?

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Which one of the following criteria is necessary for natural selection to occur? a. individuals show no variation in fitness levels. b. individuals have the same adaptations. c. enough resources exist for individuals to survive and thrive. d. a struggle for existence is apparent.

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Which one of the following criteria is necessary for natural selection to occur?

a. individuals show no variation in fitness levels. b. individuals have the same adaptations. c. enough resources exist for individuals to survive and thrive. d. a struggle for existence is apparent.