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bosh bosh
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6 years ago
If two nonsister species on the phylogenetic tree above differ from the other two in a single character state (say dark or light fur), denote any possible evolutionary changes by placing an Xor Xson the tree below.
 
  Be sure to label the X as a loss or gain.
 
  What will be an ideal response?
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wrote...
6 years ago
ANS:
should show all four possible evolutionary events as in Figure 5.4 in the text
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