Arms do not occur in

Sea Urchin

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Sea Cucumber

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Both A and B

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Sea star

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Solution

The correct option is D Both A and B
Sea urchin is a globular echinoderm without arms.
Sea cucumber is a long, cylindrical echinoderm without arms.
Sea star $Asterias$ has five arms.
So, the correct answer is 'Both A and B'.

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Similar questions

Question 24
One of the following is not an Annelid

(a) Nereis
(b) Earthworm
(c) Leech
(d) Urchins

Which phylum do starfish and sea urchin belong to?

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