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In ctenophora, the body bears _______ external rows of ciliated comb plates, which help in locomotion.

A. five

B. six

C. seven

D. eight

Correct Answer : D.


Ctenophores are commonly known as sea-walnuts or combjellies. They are exclusively marine, radially symmetrical, diploblastic organisms with tissue level of organization. The body bears eight external rows of ciliated comb plates, which help in locomotion.

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