Explain phylum porifera
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Phylum Porifera are the lowest multicellular animals belonging to the kingdom Animalia. ... Poriferans are pore-bearing first multicellular animals. The pores are known as Ostia. The poriferans have a spongy appearance and are therefore called sponges.
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The phylum Porifera contains the simplest creatures of the animal kingdom. Sponges are aquatic sessile organisms that are unable to move by themselves and they remain attached to substrates. They do not have tissue diversity and their bodies have pores , form which their name is derived
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