Quiz 9_2008

Quiz 9_2008 - Quiz 9 1. Prokaryotes are a a. polyphyletic...

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Quiz 9 1. Prokaryotes are a a. polyphyletic group xb. paraphyletic group c. monophyletic group 2. You would assign prokaryotes to a poly/para/mono-phyletic group because a. it contains the common ancestor and all of its descendents. xb. it contains the common ancestor and some of its descendents. c. it has no single common ancestor. d. it includes the Bacteria and Archaea. 3. The evolution of photosynthesis had all of the following consequences but one. Which one? a. It lead to a buildup of free oxygen that caused the extinction of many anaerobic bacteria. b. The buildup of free oxygen established the ozone layer, making the colonization of land possible. xc. It lead to the evolution of anaerobic bacteria. d. Photosynthesis provided an entirely new food source on Earth. 4. Eukaryotes are a a. paraphyletic group. b. polyphyletic group. xc. monophyletic group.
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5. Archaea often live in extreme environments, and they are sometimes grouped together by the habitat with which they are associated. Archea are found in each of the following
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This note was uploaded on 03/23/2009 for the course BSCI 106 taught by Professor Porter during the Fall '08 term at Maryland.

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Quiz 9_2008 - Quiz 9 1. Prokaryotes are a a. polyphyletic...

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