Assignment 1407-2 - (Ch24-25)

Assignment 1407-2 - (Ch24-25) - iew Attempt

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View Attempt 1 of 2 Title: Assignment 1407-2 - (Ch24-25) Started: July 14, 2010 7:00 AM Submitted: July 14, 2010 7:06 AM Time spent: 00:06:42 Total score: 100/100 = 100% Total score adjusted by 0.0 Maximum possible score: 100 Done 1. bio8 24.1-8 You are confronted with a box of preserved grasshoppers of various species that are new to science and have not been described. Your assignment is to separate them into species. There is no accompanying information as to where or when they were collected. Which species concept will you have to use? Student Response Value A. ecological B. biological C. phylogenetic D. morphological 100% Score: 6.67/6.67 2. bio8 24.1-5 There is still some controversy among biologists about whether Neanderthals should be placed within the same species as modern humans, or into a separate species of their own. Most DNA sequence data analyzed so far indicate that there was probably little or no gene flow between Neanderthals and Homo sapiens . Which species concept is most applicable in this example? Student Response Value A. phylogenetic B. biological 100% C. morphological D. ecological Score: 6.66/6.66 3. bio8 24.1-28 The origin of a new plant species by hybridization, coupled with accidents during nuclear division, is an example of Student Response Value A. allopatric speciation. B. autopolyploidy.
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Assignment 1407-2 - (Ch24-25) - iew Attempt

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