Question

write any 4 salient feature and give 2 example of phylum porifera​

Answer 1

Answer:

Characteristic Features of Phylum Porifera

1. They are generally marine aquatic organisms, with a few freshwater species.

2. Their bodies are asymmetrical.

3. Body shape can be cylindrical, vase-like, rounded or sac-like.

4. They are diploblastic animals with two layers, the outer dermal layer and the inner gastral layer.

Example : Sycon, Spongilla ,Hylonema, Cliona