Question

write the characteristic features of phylum porifera​

Answer 1

Answer:

Characteristic Features of Phylum Porifera

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. There is a gelatinous, non-cellular mesoglea, in between these two layers.

Answer 2

Answer:

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. 5. There is a gelatinous, non-cellular mesoglea, in between these two layers. This contains many free amoeboid cells.

6. The body has many pores called the ostia and a single large opening called osculum at the top.

Spongocoel is the body cavity that is present.

They have the characteristic canal system for the flow of water through the body.

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