Classification of Porifera is based on
Correct answer: B. Spicules
- A. Branching
- B. Spicules
- C. Reproduction
- D. Symmetry
Explanation
The Phylum Porifera is divided into three classes on the basis of spicules (skeleton) : calcarea or calcispongiae, hexactinellida or hyalospongiae and demospongiae or sclerospongiae. Class Calcarea have calcareous spicules, Class Hexactinellida have siliceous spicules and Class Demospongiae have siliceous spicules or spongin fibres.
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