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I guess it depends on what kind of sponge, but I think in all likelihood since most sponges have no symmetry that this comes down to the same politics as an agender person choosing a bathroom.
Pretty sure from my B- in zoo that sponges eat from what amounts to our waste hole.
So you are supposed to piss in the punchbowl and drink from the toilette.
They are a single orifice kind of animal. Take a gulp of sea water, sift oit the goodies, and expel the rest
Yeah. ok. See what kind of biological insight a B- gets you?
Echinoderms:
