McGraw-Hill Online Learning Center Test

McGraw-Hill Online Learning Center Test


1. Review the image and answer the following questions.

What major digestive innovation arises in the cnidarians?

A. a complete digestive tract
B. extracellular digestion of food
C. intracellular digestion of food
D. hunting prey items


2. What sort of symmetry is seen for the first time in the cnidarians?

A. radial symmetry
B. bilateral symmetry
C. ipsilateral symmetry
D. contralateral symmetry
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