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.
Flounders are not bilaterally symmetrical.
Dafuq you say about me?
YOU’RE NOT BILATERALLY SYMMETRICAL
In the tree of life, flounders are a sub-sub-…-sub-species of bilaterally symmetrical animals: https://www.onezoom.org/life/@Holozoa=5246131?otthome=%40_ozid%3D1&highlight=path%3A%40Apionichthys_finis%3D3640785&highlight=path%3A%40Bilateria%3D117569#x2913,y-2310,w8.2796
Edit: let me preemptively be a pedant to myself and say that “sub-…-species” is wrong because “bilaterally symmetrical animals” is not a species. Flounder is itself a species AFAIK, not a sub-species of anything. It is a descendant of the common ancestor of all bilaterally symmetrical animals. There, now surely no one will find anything to be pedantic about :D
It depends on whether it was a larvae or not.
