BIO 1362 - Spring 2010 - Quiz 3 (A)

BIO 1362 - Spring 2010 - Quiz 3 (A) - Print Test Page 1 of...

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Print Test Page 1 of 4 PRINTABLE VERSION Quiz 3 You scored 50 out of 110 Question 1 Your answer is INCORRECT. According to Lamarck's hypothesis, giraffes have long necks: A) by acquiring them through natural selection. B) by inheriting mutations that resulted in long necks from their parents. by using them to stretch for tree leaves (food source) during their lifetime and passing the trait ir offspring. D) because they were divinely created that way. E) by homoplastic inheritance. Question 2 Your answer is CORRECT. A key point in Darwin's explanation of evolution is that A) the biological structures most likely inherited are those that have become better suited to the environment through constant use. B) any mutations that occur are those that will help future generations fit into their environments. C) any trait that confers even a small increase in the probability that its possessor will survive and reproduce will be strongly favored and will spread through the population. D) genes change in order to help organisms cope with problems encountered within their environments. E) extinction is nature's way of weeding out undeserving organisms. Question 3
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BIO 1362 - Spring 2010 - Quiz 3 (A) - Print Test Page 1 of...

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