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3.2 Fishes  (Page 5/20)

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5 / 20  Members of Chondrichthyes are thought to be descended from fishes that had ________.
A  a cartilaginous skeleton
B  a bony skeleton
C  mucus glands
D  slime glands
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Practice MCQ 2 FlashCards 2 Key Terms 13

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Source:  OpenStax, Animals. OpenStax CNX. Mar 20, 2015 Download for free at https://legacy.cnx.org/content/col11771/1.1
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