characteristic features of phylum cnidariaall are


Characteristic features of Phylum Cnidaria

  • All are aquatic animals.
  • Radial or biradial symmetry around an oro-aboral axis, but no head.
  • Diploblastic, with an epidermis and a gastrodermis, and a less cellular or non- cellular, gelatinous mesoglea in between.
  • A gastrovascular cavity with a single opening, the mouth; tentacles encircling the oral region.
  • No coelom, respiratory system or separate excretory.
  • Nave net, for diffuse conduction only, present. Some sensory organs also occur.
  • No distinct muscle tissue, but epithelia - muscular system is present.
  • Two forms of individuals - benthic polyps and pelagic medusae - occur. Polyps usually reproduce asexually, budding sexual medusae. Sexual reproduction in all medusae and some polyps, involving gametes. Cleavage holoblastic and indeterminate.

Request for Solution File

Ask an Expert for Answer!!
Biology: characteristic features of phylum cnidariaall are
Reference No:- TGS0181561

Expected delivery within 24 Hours