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Question

I am an exclusively marine, radially symmetrical, diploblastic organism with a tissue level of organisation. My body bears eight external rows of ciliated comb plates, which help in locomotion. Bioluminescence is well-marked in me. Who am i?


A
Arthropoda
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B
Echinodermata
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C
Annelida
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D
Ctenophora
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Solution

The correct option is D Ctenophora
Ctenophores, commonly known as sea walnuts or comb jellies. They are exclusively marine, radially symmetrical, diploblastic organisms with tissue levels of organisation. The body bears eight external rows of ciliated comb plates, which help in locomotion. Bioluminescence is the property of a living organism to emit light, which is seen in ctenophores. Examples: Pleurobrachia and Ctenoplana.

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