Animals Part 2 - Deuterostomes
Animals Part 2 - Deuterostomes 05220
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This 1 page Class Notes was uploaded by Karina Martin on Saturday February 27, 2016. The Class Notes belongs to 05220 at a university taught by Nancy Burley in Winter 2016. Since its upload, it has received 28 views.
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Date Created: 02/27/16
Animals Part 2: Deuterostomes 1) Deuterostomes a) Blastopore becomes anus b) 4 phyla c) No fossils of common ancestor candidates 2) Phylum Echinodermata a) Echinoderm Traits i) Water vascular system with tube feet ii) Endoskeleton stiff or loose plates (stars) 3) Phylum Chordata a) Notochord – (Def.) flexible rod running along dorsal axis of body b) Nerve cord c) Pharyngeal slits – allows water to pass through d) Muscular, postanal tail 4) Invertebrate Chordates (2 subphyla) a) Cephalochordates i) adult possesses all 4 chordate traits ii) suspension feeders iii) simple “brain” 5) Vertebrates (subphylum) a) head with cranium (skull) b) vertebrae
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