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Zones of Marine Water Ecosystem

The body is l...

Question

The body is like a spiny ball in

A

Brittle Star

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B

Sea Urchin

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C

Sea Cucumber

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D

Sea Dollar

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Solution

The correct option is B Sea Urchin
A) Brittle stars are star shaped and have thin arms.
B) Sea urchins have spines and are ball shaped.
C) Sea cucumbers are cylindrical and elongated.
D) Sea dollars are flat and do not have spines.
So the correct answer is 'Sea urchin'.

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