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Author Question: Jaws first occurred in which extant group of fishes? A) lampreys B) chondrichthy (Read 1877 times)

federox

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on: Aug 8, 2013
Jaws first occurred in which extant group of fishes?
A) lampreys
B) chondrichthyans
C) ray-finned fishes
D) lungfishes
E) placoderms


theo

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Reply #1 on: Aug 10, 2013
Answer has to be B, 100% :D


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vicky

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Reply #2 on: Nov 4, 2014
thank you


vickyvicksss

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Reply #3 on: Jan 19, 2015
thank you


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