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Explain and give examples for each of the following statements about natural selection (adapted from Freeman and Herron, Evolutionary Analysis, pp. 57-61):
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1. | Natural selection acts on individuals, but it is populations that evolve. |
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2. | Natural selection acts on phenotypes, but its actions change the allele frequencies in a population. |
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3. | The entire individual is the target of selection, not the individual genes. |
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4. | Natural selection can create new traits, even though it acts on existing traits. |
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5. | Natural selection does not lead to perfection, only adaptation. |
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6. | Natural selection is nonrandom, but it does not necessarily lead to more advanced organisms. |
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