Pancakeater13 Pancakeater13

10-05-2016
Biology

contestada

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. A struggle for existence is apparent. D. Enough resources exist for individuals to survive and thrive.

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0025206 0025206

10-05-2016

The answer is C. A struggle for existence is apparent.

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marymarycontrary marymarycontrary

10-05-2016

c.
it is not a, because variation is necessary for natural selection
it's not b, because variation is necessary for natural selection
it's not d because natural selection will not occur if the organism is well adapted to its environment.

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