Write the characteristics of Phylum Coelenterata?
i) Animals belonging to this group have a special cavity called coelenteron hence
they are called coelenterates.
ii) They are diploblastic animals having two cellular body layers. Outer layer is
called ectoderm and inner layer is called endoderm.
iii) All animals are marine but some live in fresh water.
iv) Animals can move freely but some remain attached to rocks throughout their
life.
v) The common examples are Hydra, Jelly Fish and Sea anemone.