Key Characteristics of Porifera (Sponges): |
Sponges are porous, multicellular, heterotrophic, have no cell walls, and contain few specialized cells. They are sessile, meaning they live their entire adult lives attached to a single spot.
There are approximately 5,000 sponge species classified in the phylum Porifera.
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Structure & Functions of Sponges
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Interesting Facts about Sponges
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