(3) Echinoderms,etc

(3) Echinoderms,etc - Echinoderms Deuterostomes Cleavage is...

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Deuterostomes Deuterostomes Cleavage is Radial and Indeterminate Anus develops at or near blastopore, Mouth develops elsewhere Eucoelomate - Enterocoely Echinoderms Cephalochordates Chordates Urochordates
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Echinodermata Echinodermata Sea stars, sea urchins, sea cucumbers, and sea lilies Strange - many unique characteristics Pentamerous Radial symmetry as adults (not as larvae) Internal calcium-rich plates (endoskeleton) with spines Exclusively Marine - cannot osmoregulate No cephalization - Central nerve ring with branches Extensive Coelom - Water vascular system
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Echinodermata Echinodermata Water Vascular System Madreporite Stone canal Ring canal 5 Radial canals Lateral canals Ampulla Tube foot
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Echinodermata Echinodermata Pedicellariae - minute pincers, protect and clean Dermal Branchiae (papulae) - projections of coelomic cavity for respiration; Hemal system Regeneration, Autotomy Larval stages
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Phylum Chordata Phylum Chordata Four Main Characteristics
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This note was uploaded on 04/07/2008 for the course BIO 103 taught by Professor Potts-santone during the Spring '07 term at Northeastern.

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(3) Echinoderms,etc - Echinoderms Deuterostomes Cleavage is...

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