EVOLUTION
EVIDENCE FOR EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Weeds are removed by a gardener from a public park.
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Wild horses are tamed over many years and selectively allowed to reproduce.
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A crab produces millions of offspring in a year, but few survive to adulthood.
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Farmers collect the largest corn seeds to plant in their fields the following year.
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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: -The essence of Darwin’s theory is that natural selection will occur if three conditions are met. These conditions, highlighted in bold above, are a struggle for existence, variation and inheritance. These are said to be the necessary and sufficient conditions for natural selection to occur.
Detailed explanation-3: -Answer and Explanation: The correct answer is E) It requires genetic variation, results in descent with modification, and involves differential reproductive success.