Bio 101 - Quiz 3 Blue Key

Bio 101 - Quiz 3 Blue Key - Biology 101 An Introduction to...

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Biology 101: An Introduction to Biology Winter Quarter 2008 Lecture Quiz 3, Blue Form Instructions: For each question below, fill in the space on the bubble sheet corresponding to the best answer for that question. There is always one best answer, though more than one may appear plausible upon first glance. This quiz covers class and reading material from 1/22-1/24 and is worth 20 points. Be sure to indicate on the top of your answer sheet which color of quiz you are taking; if you fail to do this, your answer sheet may be graded with the wrong key and you will be responsible for the poor grade that will likely result. 1. Which of the following statements best describes major extinction events over the last billion years? A. There is no compelling scientific evidence for mass extinctions in the fossil record. B. Nine separate extinction events have occurred, with the last one beginning with the last ice age. C. Three extinction events have occurred, and they’ve all been associated with global floods. D. Six major extinction events linked to major environmental upheavals have occurred, and we may currently be in a seventh due to the activities of man. E. Only one has occurred: the one that killed off the dinosaurs
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