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  4. Introduction to animal diversity
  5. The evolutionary history of the

27.4 The evolutionary history of the animal kingdom  (Page 7/15)

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7 / 15  Until recent discoveries suggested otherwise, animals existing before the Cambrian period were believed to be:
A  small and ocean-dwelling
B  small and non-motile
C  small and soft-bodied
D  small and radially symmetrical or asymmetrical
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Practice MCQ 6 FlashCards 2 Key Terms 4

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Source:  OpenStax, Biology. OpenStax CNX. Feb 29, 2016 Download for free at http://cnx.org/content/col11448/1.10
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