two distinguishing features of phylum porifera
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Explanation:
They are generally marine aquatic organisms, with a few freshwater species.
Their bodies are asymmetrical.
Body shape can be cylindrical, vase-like, rounded or sac-like.
They are diploblastic animals with two layers, the outer dermal layer and the inner gastral layer.
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1)Poriferans are commonly called sponges.
2) These are multicellular organisms which are sessile/sedentary in nature.
3)Most of them are marine while a few are fresh water forms.
4)Body is cylindrical, asymmetrical or has radial symmetry.
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