The sponge is an actual living entity. There are many types of sponge. They are harvested and sold as "natural sea sponges".
Sea sponge
It is a sponge.
They live underwater.smart one...
Underwater
A spongia.
spongey
SpongeBob is a sea sponge even though he is shaped like a synthetic kitchen sponge.
sponge is a porifera .......diploblustic and have only tissue level of organisation.
What is a purple tube sponge what are you on?
they live in the sea
Sponges do live in the ocean.