starfish dissection
DESCRIPTION
STARFISH DISSECTION. http://www.emerchandise.com/images/p/SBS/pdPASBS0005.jpg. Kidspiration by Riedell. SYMMETRY. ADULTS- Radial LARVA- Bilateral. http://www.uic.edu/classes/bios/bios100/labs/radial.jpg. STARFISH. LATIN meaning KINGDOM _____________ - PowerPoint PPT PresentationTRANSCRIPT
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STARFISH DISSECTION
http://www.emerchandise.com/images/p/SBS/pdPASBS0005.jpg
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Kidspiration by Riedell
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SYMMETRY
ADULTS- Radial
LARVA- Bilateral
http://www.uic.edu/classes/bios/bios100/labs/radial.jpg
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STARFISH LATIN
meaningKINGDOM _____________
PHYLUM _____________________________
CLASS _______________________________
ANIMALIA
ECHINODERMATA “spiny skin”
ASTEROIDEA “star-like”
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SPINES PEDICELLARIA SKIN GILLS
Image by Riedell
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SPINY SKIN
SPINES for protection connect to ENDOSKELETON inside underneath skin
http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
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OSSICLESCalcium carbonate plates
form endoskeleton insidehttp://ebiomedia.com/prod/BOechinoderms.html
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SPINES PEDICELLARIA SKIN GILLS
Image by Riedell
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PEDICELLARIAE(sing. Pedicellaria)
Keep surface clear of organisms
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SKIN GILLSHollow skin tubes that project from skin for increased surface area
connect to coelom inside
Image by Riedell
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Skin gills between spines
EXCHANGE GASES and EXCRETE NITROGEN WASTE
http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
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TUBE FEET surfaces
http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
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EYESPOTS
Sense light/dark
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ORAL VIEW
http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
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http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
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http://ebiomedia.com/gall/skin/skin1.html
Opening to water vascular system
Madreporite
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WATER VASCULAR SYSTEM
BIODIDAC
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http://mbgnet.mobot.org/salt/animals/star.jpg
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AMBULACRAL GROOVE
TUBE FEET sit in GROOVE
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TUBE FEETUsed for feeding & locomotion
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CUT TRIVIUM
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DIGESTIVE GLAND
Makes BILEABSORBS NUTRIENTS
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http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm
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2 part STOMACH
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DIGESTIVE SYSTEM
DIGESTIVEGLANDS
DIGESTIVE
GLANDSMOUTH
ANUS
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CARDIAC stomach connects to mouth(extruded during feeding)
PYLORIC stomach connects to digestive glands and ANUS
http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm
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http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish/
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AMBULACRAL RIDGE covered by OSSICLES contains RADIAL NERVE (nervous)
RADIAL CANAL (water vascular system)
http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish/
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AMBULACRAL RIDGE
AMPULLAE (tops of tube feet)
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OSSICLESCalcium carbonate plates
form endoskeleton insidehttp://ebiomedia.com/prod/BOechinoderms.html
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GONADS
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http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm
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NERVOUS SYSTEMNERVE RING encircles mouth
RADIAL NERVES run inside AMBULACRAL RIDGE in each arm
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SEPARATE SEXESGONADS-reproductive organs
Starfish have bothSEXUAL ASEXUAL (Regeneration)
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http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm
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DIGESTIVEGLAND
GONAD
OSSICLES
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LARVA
FERTILIZATION EXTERNAL
INDIRECT
Has BILATERAL SYMMETRY and wings to swim
BIPINNARIA
DEVELOPMENT
SEXUAL REPRODUCTION
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ASEXUAL REPRODUCTION
Ability to self amputate
Ability to regrow lost parts
AUTOTOMY
REGENERATION