First slide

Classification of Animals

Question

A skeleton made up of spicules or spongin fibres is the characteristic feature of the phylum

Moderate

A

Cnidaria
B

Mollusca
C

Ctenophora
D

Porifera

Solution

The body of sponges (phylum Porifera) is supported by a skeleton made up of spicules (siliceous or calcareous) or spongin fibres.

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