24022900-Biology-Study-Guide-4

24022900-Biology-Study-Guide-4 - Biology Study Guide 4 1...

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Biology Study Guide 4 1) Charles Darwin was the first to propose 1) _______ A) a mechanism for how evolution occurs. B) that the Earth is older than 6,000 years. C) a mechanism for evolution that was supported by evidence. D) a way to use artificial selection as a means of domesticating plants and animals. E) that evolution occurs. 2) Which statement about natural selection is most correct? 2) _______ 3) Given a population that contains genetic variation, what is the correct sequence of the following events, under the influence of natural selection? 1. Differential reproduction occurs. 2. A new selective pressure arises. 3. Allele frequencies within the population change. 4. Poorly adapted individuals have decreased survivorship. 3) _______ 4) Which of the following statements is not an inference of natural selection? 4) _______ 5) Which of the following must exist in a population before natural selection can act upon that population? 5) _______ A) sexual reproduction B) variation among individuals caused by environmental factors C) genetic variation among individuals D) A and C only E) A, B, and C 6) Which of the following pieces of evidence most strongly supports the common origin of all life on Earth? 6) _______
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