McGraw-Hill Online Learning Center Test

McGraw-Hill Online Learning Center Test


1. Review the image and answer the following questions.

What is the first group to show bilateral symmetry?

A. sponges
B. cnidarians and ctenophorans
C. flatworms
D. roundworms


2. In what group did jointed appendages arise?

A. annelids
B. arthropods
C. mollusks
D. nematodes
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