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Author Question: Among extant vertebrates, a sheet of muscle called the diaphragm is found in A) (Read 720 times)

federox

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on: Aug 8, 2013
Among extant vertebrates, a sheet of muscle called the diaphragm is found in
A) birds.
B) monotremes.
C) marsupials.
D) placentals.
E) Three of the options listed are correct.


theo

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Reply #1 on: Aug 10, 2013
Answer has to be E, 150% :D


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