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Documents © 2014 Pearson Education, Inc. 1. Echinoderms Sponges Cnidarians Chordates Brachiopods Annelids...

Slide 1 © 2014 Pearson Education, Inc. 1 Slide 2 Echinoderms Sponges Cnidarians Chordates Brachiopods Annelids Molluscs Ediacaran Arthropods 635 Cambrian PALEOZOIC PROTEROZOIC…

Documents Chapter 17 The Evolution of Animals. What Is an Animal? – Animals are: Eukaryotic Multicellular...

Slide 1 Chapter 17 The Evolution of Animals Slide 2 What Is an Animal? – Animals are: Eukaryotic Multicellular Heterotrophic organisms that obtain nutrients by ingestion…