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The animal with bilateral symmetry in young stage and radial pentamerous symmetry in the adult stage belong to the phylum

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The animal with bilateral symmetry in young stage and radial pentamerous symmetry in the adult stage belong to the phylum

(a) Annelida

(b) Mollusca

(c) Cnidaria

(d) Echinodermata

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Correct option  (d) Echinodermata

Explanation:

Echinoderms are triploblastic animats with organ system level of organisation. Larval forms possess bilateral symmetry while adults have radial symmetry.

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