Regnul animal II - tridermice, Nev

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  • Created by: icamui1
  • Created on: 30-03-15 17:28

VIERMII = metazoare tridermice, cu simetrie bilatarela la care apare mezodermul; majoritatea se deplaseaza prin tarare

I.VIERMI LATI (PLATELMINTI)

  • ape dulci/sarate, medii umede
  • paraziteaza corpul animalelor
  • formele libere- organe de simt; parazite - organe de fixare;
  • corp aplatizat, nesegmentat, forma de panglica
  • nu au sistem circulator, respirator (Respiratie cutanee)
  • sistem nervos, digestiv
  • hermafroditi
  • inmultire sexuata

trematode: vierme de

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