EVOLUTION
HISTORICAL CONTEXT FOR EVOLUTIONARY THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Each of the following is a condition necessary for natural selection to occur EXCEPT
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more offspring are born than can survive.
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population size is very large.
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fitness varies among individuals.
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there is heritable variation among members of the population.
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Explanation:
Detailed explanation-1: -Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.
Detailed explanation-2: -Therefore, we see that the only condition listed here that is not necessary for natural selection to occur is C. The trait must be the result of a mutation.
Detailed explanation-3: -Natural selection is a simple mechanism that causes populations of living things to change over time. In fact, it is so simple that it can be broken down into five basic steps, abbreviated here as VISTA: Variation, Inheritance, Selection, Time and Adaptation.
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