Larva of the echinoderms is (1) Sessile \( \mathrm{P} \) (2) Free-swimming W (3) Both 1 and 2 (4...

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Larva of the echinoderms is
(1) Sessile
\( \mathrm{P} \)
(2) Free-swimming
W
(3) Both 1 and 2
(4) In echioderms larva is not found / development is direct
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