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sponge, any of the primitive multicellular aquatic animals that constitute the phylum Porifera. They number approximately 5,000 described species and inhabit all seas, where they occur attached to surfaces from the intertidal zone to depths of 8,500 metres (29,000 feet) or more.
Apr 9, 2024
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They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl ...
Sponge
Animal
Sponges, the members of the phylum Porifera, are a basal animal clade as a sister of the diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like... Wikipedia
Lower classifications
Apr 23, 2024 · any of a phylum (Porifera) of aquatic chiefly marine simple invertebrate animals that have a double-walled body of loosely aggregated cells ...