FINAL part 2 - Avicularia for defense & perhaps food...

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Marine Form Excellent example of polymorphism Phylum Bryozoa Avicularia – for defense & perhaps food capture. Vibracula - keep colony free of debris and settling organisms. V A Monday, June 13, 2011
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Phylum Echinodermata (5 Classes) O h I ACHE ! A steroids Cr ashed H ere O n E arth Ophiuroidea Asteroidea Crinoidea Holothuroidea Echinoidea Monday, June 13, 2011
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Echinodermata Basics •Water vascular system for •Exclusively marine MOST are dioecious. . •Phylum typically has pentaradial symmetry Monday, June 13, 2011
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Class Holothuroidea - Sea Cucumbers Respiratory Structure? Term for releasing insides? Symmetry as adult? Monday, June 13, 2011
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Class Holothuroidea - Sea Cucumbers Respiratory Tree Evisceration Secondarily bilateral as adults Monday, June 13, 2011
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Class Asteroidea - Sea Stars Path of Water Flow: Madreporite ->stone canal ->ring canal-> radial canals->lateral/transverse canals-> tube feet/ampullae Surface features visible in some sea stars but more so in Echinoids: Pedicellariae - for cleaning the surface Papulae = dermal branchiae - for respiration Monday, June 13, 2011
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1ZMPSJD $BFDVN (POBE 3BEJBM $BOBM BOE UVCF GFFU "NCVMBDSBM 3JEHF "NCVMBDSBM (SPPWF $SPTT 4FDUJPOT UISPVHI 3BZ PG B 4FB 4UBS A B B 1FSJWJTDFSBM $PFMPN 1ZMPSJD 4UPNBDI $BSEJBD 4UPNBDI ± DBO CF FWFSUFE JO TPNF TFBTUBST² Mouth – oral surface Anus - Aboral surface Ampulla Podium F O O D Hepatic or pyloric caecum A Sucker Enables locomotion – but in Ophiuroidea this is replaced by a platelet, preventing tube feet being used for movement. Monday, June 13, 2011
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http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm Monday, June 13, 2011
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Class Echinoidea - Sea Urchins, Sand Dollars What is the test used for? What is it made of? Aristotle’s Lantern is used for what? Name the other surface features. Functions? Monday, June 13, 2011
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Class Echinoidea - Sea Urchins, Sand Dollars Test – Support Made up of ossicles Aristotle’s Lantern – Feeding Pedicellariae are for cleaning the surface Papulae are dermal branchiae for respiration Monday, June 13, 2011
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Class Crinoidea - Sea Lilies and Feather Stars Mouth on upper surface of body
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This note was uploaded on 06/13/2011 for the course BIOLOGY bsc2011L taught by Professor Dr.tschinkel during the Fall '11 term at FSU.

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FINAL part 2 - Avicularia for defense & perhaps food...

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