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Coelenterata

Coelenterata. Coelenterata. coelenteron = rongga Rongga tubuh sebagai saluran pencernaan Cnidaria ( cnido = penyengat ) Sel penyengat di tentakel Tentakel vang dilengkapi sel Knidoblas yang mengandung racun sengat disebut Nematokis ( ciri khas dari hewan berongga ).

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Coelenterata

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  1. Coelenterata

  2. Coelenterata • coelenteron = rongga • Ronggatubuhsebagaisaluranpencernaan • Cnidaria (cnido = penyengat) • Selpenyengatditentakel • TentakelvangdilengkapiselKnidoblas yang mengandungracunsengatdisebutNematokis (cirikhasdarihewanberongga). • Hydra, ubur-ubur, anemonlautdankoral

  3. Diploblastik : dualapisansel, yaituektoderm (epidermis) dan endoderm (lapisandalamataugastrodermis). • Ektodermberfungsisebagaipelindungsedang endoderm berfungsiuntukpencernaan. Sel-selgastrodermisberbatasandengancoelenteronataugastrosol.

  4. Respirasidanekskresisecaradifusi • Sistemsyarafmenyebarkeseluruhtubuh. • Beberapamenunjukkan polymorphism, dimanatipeindividu yang berbedaadadalamsatukolonidenganfungsi yang berbeda. Bentukinidisebut Zooids • Reproduksiaseksual (pembentuka tunas) dansecara sexually (gametes)

  5. Klasifikasi Coelenteratadibedakandalamtigakelasberdasarkanbentuk yang dominandalamsiklushidupnya, yaitu Hydrozoa, Scypozoa, danAnthozoa.

  6. Hydrozoa

  7. Hydra

  8. Physalia • (Physaliaphysalis) • Portuguese Man-Of-War, Man-Of-War, or Bluebottle, • Tentakelmenghasilkanracun yang poten • Despite its outward appearance, the Man o' War is not a jellyfish but a siphonophore

  9. Anthozoa: coral

  10. Anthozoa: sea anemon

  11. Type polyploid • Gastrozooid -- involved if feeding and prey catching • Dactylozooid--sensory function • Tentaculozooid-- protection of colony. • Gonozooid-- reproduction • One class of Cnidaria, namely the Anthozoa consists of only polypoid forms (Corals) )

  12. Schipozoa: jelly fish

  13. A jellyfish's body generally comprises six basic parts: • The epidermis, which protects the inner organs • The gastrodermis, which is the inner layer • The mesoglea, or middle jelly, between the epidermis and gastrodermis • The gastrovascular cavity, which functions as a gullet, stomach, and intestine all in one • An orificethat functions as both the mouth and anus • Tentacles that line the edge of the body

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