Tube feet are without suckers in____________.

Echinoidea

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Ophiuroidea

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Crinoidea

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Both B and C

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Solution

The correct option is D Both B and C
Ophiuroidea: Their tube feet lack suckers, they feed on small particles (filter feeders).
In Crinoidea, terminal suckers are absent and the tube-feet are sensory

So, the correct answer is 'D'.

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Question 19
The locomotory organs of Echinodermata are

(a) tube feet
(b) muscular feet
(c) jointed legs
(d) parapodia

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