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September 4, 2015

Homework Help: Biology

Posted by Dante on Tuesday, February 8, 2011 at 10:31pm.

All organisms in group 2(birds, fish, mammals, echinoderms, amphibians) except _______ are thought to share a common ancestor that possessed many of the same characterisitcs as the modern lancelets.

A)echinoderms
B)fish
C)amphibians
D)birds
E)mammals

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