Short notes of phylum porifera
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PORIFERA
- Sponges are mostly marine and few fresh water animals.
- Study of sponges is called parazoology.
- Porifera is sessile, solitary, and few are colonial.
- Body origination of porifera is cellular level.
- Body plan of porifera is cell aggregation.
- Symmetry of porifera is asymmetry.
- Body is porous.
- Presence of choanocyte is the unique character of Porifera.
- Presence of canal system is unique character of porifera.
- Example of porifera are sycon, euspongia, spongilla, euplectella etc.
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