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Which of the following options does correctly represent the characteristic features of phylum Annelida?

(1) Diploblastic, mostly marine and radially symmetrical.

(2) Triploblastic, unsegmented body and bilaterally symmetrical.

(3) Triploblastic, segmented body and bilaterally symmetrical.

(4) Triploblastic, flattened body and acoelomate condition.
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Best answer

Answer (3) Triploblastic, segmented body and bilaterally symmetrical.

Sol. Option (3) is the correct answer as members of phylum Annelida are segmented worms exhibiting triploblasty. Acoelomate condition and bilateral symmetry are seen in members of phylum Platyhelminthes.

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