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Question
Natural selection operates only on ______ traits.
Fill in the Blanks
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Solution
Natural selection operates only on inherited traits.
Explanation:
Natural selection can only act on those variations that are passed from one generation to the next. These inherited traits have a genetic basis and can be transmitted to offspring, influencing their survival and reproduction. Acquired traits, which are not inherited, do not contribute to evolution by natural selection. This is a fundamental point emphasized in Darwin’s theory and subsequent evolutionary biology studies.
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