Chapter Summary

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32.1 Deuterostomes Include Echinoderms, Hemichordates, and Chordates

32.2 Echinoderms and Hemichordates Are Restricted to Marine Environments

32.3 Chordates Have a Dorsal Nerve Cord and a Notochord

32.4 Life on Land Contributed to Vertebrate Diversification

32.5 Humans Evolved among the Primates

See Activity 32.3 for a review of this chapter.

See Activity 32.4 for a review of the major groups of organisms.

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