STARFISH DISSECTION Pick your groups, 3-4 people. Make sure you have 1 person to do dissection! Put everything on side counters!! Sit!!

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Presentation transcript:

STARFISH DISSECTION Pick your groups, 3-4 people. Make sure you have 1 person to do dissection! Put everything on side counters!! Sit!!

STARFISH KINGDOM ANIMALIA PHYLUM ECHINODERMATA “spiny skin” https://www.youtube.com/watch?v=qC89SLOXIvs https://www.youtube.com/watch?v=Xm2mF2IgLrA STARFISH KINGDOM ANIMALIA PHYLUM ECHINODERMATA “spiny skin” CLASS ASTEROIDEA “star-like”

Who do you find more attractive? And no it’s not a question of sexual preference, so don’t go there.

SYMMETRY ADULTS- Radial LARVA (young)- Bilateral http://www.uic.edu/classes/bios/bios100/labs/radial.jpg

PENTARADIAL Symmetry http://www.seashells.org/identcatagories/starfish.htm

ALL INVERTEBRATES ARE PROTOSTOMES (mouth first) EXCEPT ECHINODERMS. Echinoderms, like starfish, are the only INVERTEBRATES that are also DEUTEROSTOMES (anus first)

Phylogeny

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

1-4

6-10

11-12

AMBULACRAL RIDGE 13-14

17-19

20-21 http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm

22 WATER VASCULAR SYSTEM BIODIDAC

TUBE FEET Used for feeding & locomotion 23 http://www.scsc.k12.ar.us/2001Outwest/PacificNaturalHistory/Projects/ReynoldsJ/starfish.jpg