Refer to figure 21.49 and the chapter content to answer the following questions.

1. Review the Survey the Landscape figure in the chapter introduction. Describe the position of kingdom Animalia in the tree of life.

2. Write connecting phrases to separate arthropods and roundworms from annelids, mollusks, and flatworms.

3. Draw a concept map that summarizes the chordates, including both invertebrates and vertebrates.

Figure 21.49

Transcribed Image Text:

Kingdom Animalia true tissues absent true tissues present Parazoa (sponges) Eumetazoa three germ layers, three germ layers, protostomes two germ layers deuterostomes Cnldarians Arthropods Echinoderms Roundworms Chordates Annelids Mollusks Flatworms