Just Underneath the Pinacocyte Layer of a Sponge is a Jellylike

Question

Just underneath the pinacocyte layer of a sponge is a jellylike layer referred to as the
A)ectoderm.
B)endoderm.
C)mesoderm.
D)mesohyl.
E)endochyme.

Accepted Answer

The jellylike layer underneath the pinacocyte layer of a sponge is referred to as the mesohyl. This layer contains various cells, fibers, and non-cellular substances that give the sponge its structure and support. It also plays a role in nutrient transport and waste removal within the sponge's body.