Class 11 Biology Animal Kingdom Phylum-Echinodermata

Easy

What is the body wall of Echinoderms composed of?

A
Calcium carbonate plates and spines
B
Calcium carbonate only
C
Sodium bicarbonate and spines
D
Chitin and calcium spines

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Class 11 Questions

Class 11

Biology Questions

Chapter

Animal Kingdom

Subtopic

Phylum-Echinodermata

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