'Urochordata tunicates' presentation slideshows

Read chapter 2 of the text

Read chapter 2 of the text. Phylum Chordata. The chordates are a group of particular interest to us as we belong to it, being members of the subphylum Vertebrata.

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Origin & Evolution of Vertebrates Ch. 34

Origin & Evolution of Vertebrates Ch. 34. Lecture Objectives 1. Intro to Phylum Chordata. Echinodermata. Cephalochordata. ANCESTRAL DEUTEROSTOME. Urochordata. Notochord. Myxini. Common ancestor of chordates. Petromyzontida. Chondrichthyes. Vertebrae. Jaws, mineralized skeleton.

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DIVERSITY, CLASSIFICATION & EVOLUTION PART I

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Phylum Mollusca

Gastropods (Snails, slugs) Bivalves (oysters, clams, mussels) Cephalopods (squid, cuttlefish, octopus) Marine, freshwater, moist land Secretes shell Locomotive foot. Phylum Mollusca. Class Gastropoda Mantle Tissue that secretes shell Radula Rows of rasping teeth for grazing

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Protochordates

Protochordates. Chordates Attributes. Dorsal hollow nerve cord Notochord Bilateral symmetry Pharyngeal gill slits Post-anal tail Ventral circulatory system. Hemichordata. Acorn worm--marine substrate dwelling individuals Colonial tube creatures with tentacular crowns

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