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mikael mikael
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10 years ago
All chordates have ______.
A) a dorsal, hollow nerve cord and a notochord
B) a post-anal tail and a single opening for the mouth and anus
C) a cranium and vertebrae
D) pharyngeal slits and a cranium
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wrote...
9 years ago
This is for essentials biology, right? the answer is A. Bye for now.
mikael Author
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9 years ago
Thanks again, really helps put things in perspective.
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