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The nature of...

Question

The nature of endoskeleton in echinoderms is:

A

Chitinous

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B

Silicious

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C

Calcareous

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D

Tunicin

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Solution

The correct option is C Calcareous
The skeleton of an echinoderm is an endoskeleton. Echinoderms have calcareous endoskeleton consisting of ossicles connected by a mesh of collagen fibres. These are known as spiny skinned animals.
So, the correct answer is option C.

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