Choose the correct statement about body symmetry exhibited by echinoderms.

Radially symmetrical adults and bilaterally symmetrical larvae

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Bilaterally symmetrical adults and radially symmetrical larvae

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Bilaterally symmetrical adults and asymmetrical larvae

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Metamerically segmented adults and asymmetrical larvae

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Solution

The correct option is A Radially symmetrical adults and bilaterally symmetrical larvae
Echinoderms are a phylum exclusively consisting of marine animals. The adults are recognizable by their radial symmetry whereas their larvae are bilaterally symmetrical. Examples are starfish, sea urchins, sand dollars, sea cucumbers and sea lilies or "stone lilies".

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