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Invertebrates 8 Phyla of Invertebrates

Invertebrates 8 Phyla of Invertebrates. Part 8. Porifera ( sponges ) asymmetrical Body has canal and pores sessile (attached to object, cannot move). Cnidaria ( stinging cell) Stinging cells and hollow bodies tentacles that surround a mouth. * Platyhelminthes ( flatworm )

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Invertebrates 8 Phyla of Invertebrates

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  1. Invertebrates8 Phyla of Invertebrates Part 8

  2. Porifera (sponges) • asymmetrical • Body has canal and pores • sessile (attached to object, cannot move)

  3. Cnidaria (stinging cell) • Stinging cells and hollow bodies • tentacles that surround a mouth

  4. *Platyhelminthes (flatworm) 3 kinds of cells _flattened body One body opening Many are parasites, some are Free-Living Can regenerate

  5. *Nematoda (roundworm) 3 kinds of cells Round bodies with pointed ends Males & females are separate

  6. *Annelida (segmented worm) 3 kinds of cells Body divided into segments (with setae) Most are hermaphrodites & free living

  7. Mollusca (soft-bodied) Soft body usually protected by a shell Body covered by mantle Have muscular foot Most have separate sexes

  8. *Arthropoda (jointed leg) Jointed appendages Segmented bodies Exoskeleton that sheds by molting Head, thorax, abdomen are main parts Some separate sexes, hermaphrodites, parthenogenesis Some emit pheromones

  9. Echinoderms (spiny skin) 5 part body spines Tube Feet (with Suctions)

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