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Author Question: In a comparison of birds and mammals, having four limbs is A) a shared ancestral (Read 1265 times)

geoffrey

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on: Jul 14, 2013
In a comparison of birds and mammals, having four limbs is
A) a shared ancestral character.
B) a shared derived character.
C) a character useful for distinguishing birds from mammals.
D) an example of analogy rather than homology.
E) a character useful for sorting bird species.


penguins

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Reply #1 on: Jul 15, 2013
Easy! It's A. Bye for now :D


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geoffrey

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Reply #2 on: Aug 1, 2013
Thank you!


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