Question

write three important features of phylum porifera​

Answer 1

Answer:

These are pore-bearing multicellular animals.

The body has no organs.

They exhibit holozoic nutrition

Answer 2

Characteristic skeleton consisting of either fine flexible spongin fibers, siliceous spicules or calcareous spicules. Mouth absent, digestion intracellular. Excretory and respiratory organs are absent. Contractile vacuoles are present in some freshwater forms.


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