Practical 2
I.Cnidaria D.Anthozoa More species than Hydrozoa or ScyphozoaMore species than Hydrozoa or Scyphozoa No medusa stageNo medusa stage Polyps more complex.
TISSUE level of body organization Middle layer = MESOGLEA = Acellular matrix (Just jelly!) Diagnostic cell type = CNIDOCYTE It contains the Nematocyst.
