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Author Question: The most ancient branch point in animal phylogeny is that between having A) radi (Read 1020 times)

hummingbird

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on: Aug 2, 2013
The most ancient branch point in animal phylogeny is that between having
A) radial or bilateral symmetry.
B) a well-defined head or no head.
C) diploblastic or triploblastic embryos.
D) true tissues or no tissues.
E) a body cavity or no body cavity.


geoffrey

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Reply #1 on: Aug 3, 2013
Best answer would be D.


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hummingbird

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Reply #2 on: Aug 7, 2013
Great help lol Thanks


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