exam2key-311Dsp10 - Dr. Reichlers Bio 311D Exam #2 March 8,...

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Dr. Reichler’s Bio 311D Exam #2 March 8, 2010 Print Name:_______________KEY_________ Read each question carefully and don’t hesitate to ask if a question seems unclear. If possible, answer each question in the space provided, but if needed, continue on the back. If you use a drawing as part of your answer, be sure to also include a written explanation. These questions have specific answers, although for some, more than one answer is possible. To receive full credit you must clearly and fully answer the question being asked. The points for each question are noted in parentheses totaling 100 points. 1. You find some skeletons of human-looking individuals from an isolated island, would they be considered H. sapiens ? Why or why not? (10 pts) If they were isolated from other humans, than they would be a separate species. They would not be sharing DNA with other humans. 2. Even though evolution by natural selection, is considered not random, there is some randomness during natural selection. Give one example of a random aspect of natural selection. Describe why this aspect of natural selection is random, and how it affects evolution by natural selection. (10 pts)
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exam2key-311Dsp10 - Dr. Reichlers Bio 311D Exam #2 March 8,...

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