Question

7. Coelenterates are characterized by the presence of
cnidoblasts
mesogloea
gastrovascular cavity
All of these​

Answer 1

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Option :-

4th Option - All of these is the correct option.

Reason :-

Because the ectoderm of coelenterates is provided with special type of cells called cnidoblasts or stinging cells. Between ectoderm and endoderm a noncellular jelly like layer called mesoglea is present. Coelenterates also have a cavity which has a important role in digestion called gastrovascular cavity.