L10 Handout - Lab 9 - Invertebrates II

L10 Handout - Lab 9 - Invertebrates II - Bio 1A Lab Lecture...

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Bio 1A Lab Lecture Outline # 9 Invertebrate II Nov. 3 rd , 2008 I. Overview: A. Echinodermata: General features B. Echinodermata Images C. Arthropods: General features and trends, Classification, Horse shoe crabs D. Arthropod Images II. Echinodermata A. Marine only, about 7,000 species, Deuterostome development B. Adults have raidial symmetry, juvenile forms bilateral, endoskeleton, dermal branchiae C. Water vascular system – unique D. Osmoconformers - E. Classification: Campbell Table 33.6 Classes: Asteroidea – starfish Echinodea – sea urchins Holothurodiea – sea cucumbers (little endoskeleton) Ophiuroidea – brittle stars slender arms, no pedicellaria, no papula Crinoidea – sea lilly, filter feeder F. Images- diversity, external and internal anatomy IV. Overview of arthropods A. Largest amount of species diversity > 1-2 million species B. Chitnous (modified cellulose, N-acetylglucosoamine) exoskeleton i) soft joints /hinges. ii) functions:
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This note was uploaded on 09/28/2009 for the course BIO 1al taught by Professor Pederson during the Fall '08 term at University of California, Berkeley.

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L10 Handout - Lab 9 - Invertebrates II - Bio 1A Lab Lecture...

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