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Presentation transcript:

STARFISH DISSECTION http://www.emerchandise.com/images/p/SBS/pdPASBS0005.jpg

STARFISH LATIN meaning ANIMALIA ASTEROIDEA “star-like” KINGDOM _____________ PHYLUM _____________________________ CLASS _______________________________ ANIMALIA ECHINODERMATA “spiny skin” ASTEROIDEA “star-like”

PENTARADIAL (5 armed starfish) http://www.seashells.org/identcatagories/starfish.htm

INVERTEBRATES (No backbone) ALL INVERTEBRATES ARE PROTOSTOMES EXCEPT ECHINODERMS ONLY INVERTEBRATES that are DEUTEROSTOMES

ORAL VIEW http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish/Starfish02D.html

http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish

EYESPOTS Sense light/dark

WATER VASCULAR SYSTEM BIODIDAC

http://mbgnet.mobot.org/salt/animals/star.jpg

ORAL VIEW MOUTH http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish/Starfish02D.html

AMBULACRAL GROOVE TUBE FEET sit in GROOVE

TUBE FEET Used for feeding & locomotion http://www.scsc.k12.ar.us/2001Outwest/PacificNaturalHistory/Projects/ReynoldsJ/starfish.jpg

CUT TRIVIUM

DIGESTIVE GLAND Makes BILE ABSORBS NUTRIENTS

http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm

2 part STOMACH

CARDIAC stomach connects to mouth (extruded during feeding) http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm CARDIAC stomach connects to mouth (extruded during feeding) PYLORIC stomach connects to digestive glands and ANUS

EUCOELOM OPEN CIRCULATION http://faculty.baruch.cuny.edu/jwahlert/bio1003/echinoderm.html

http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish/

WATER VASCULAR SYSTEM BIODIDAC

http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm

GONADS

AMBULACRAL RIDGE covered by OSSICLES contains RADIAL NERVE (nervous) http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish/ AMBULACRAL RIDGE covered by OSSICLES contains RADIAL NERVE (nervous) RADIAL CANAL (water vascular system)

AMBULACRAL RIDGE AMPULLAE (tops of tube feet)

http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm

DIGESTIVE GLAND GONAD OSSICLES

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