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The top documents tagged [ancestral protist]
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© 2014 Pearson Education, Inc. 1. Echinoderms Sponges Cnidarians Chordates Brachiopods Annelids Molluscs Ediacaran Arthropods 635 Cambrian PALEOZOIC PROTEROZOIC
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Chapter 17 The Evolution of Animals. What Is an Animal? – Animals are: Eukaryotic Multicellular Heterotrophic organisms that obtain nutrients by ingestion
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