Question

Write the characteristics of Coelenterata

Answer 1

Explanation:

all coelenterates are aquatic, mostly marine. The bodyform is radially symmetrical, diploblastic and does not have a coelom. The body has a single opening, the hypostome, surrounded by sensory tentacles equipped with either nematocysts or colloblasts to capture mostly planktonic prey.

Answer 2

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In Greek Coel = cavity; enter = intestine; ata = group.

There organisms are aquatic.

There is a cavity in the body.

The body is made of two layers of cells.

Some of species live in colonies and some live in solitary.

There body wall is formed of outer epidermis and inner gastrodermis.

There are radically symmetrical and diploblastic animals

Example = jellyfish, Hydra, Aurelia, Metridium, Physalia, Corals.