What is the body wall of Echinoderms composed of?
- ACalcium carbonate plates and spines
- BCalcium carbonate only
- CSodium bicarbonate and spines
- DChitin and calcium spines
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Similar Questions
Which phylum consists exclusively of marine animals?
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View SolutionWhich of the following terms is not applicable to $Echinodermata$?
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View SolutionThe adult animal in this phylum is radially symmetrical; but its larva exhibits bilateral symmetry.
Animals that exhibit bilateral symmetry in the larval stage and radial (pentamerous) symmetry in the adult stage belong to the phylum:
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View SolutionAssertion : Ambulacral system plays a major role in locomotion of echinoderm.
Reason : Hydraulic pressure of fluid and contraction of muscle of tube feet make possible movement of echinoderm.
Reason : Hydraulic pressure of fluid and contraction of muscle of tube feet make possible movement of echinoderm.
MediumAIIMS 2017
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