When does a sponge produce genmmules?

Depending on the type of sponge, they can reproduce either sexually or asexually. Sexual reproduction of a sponge is when a male sponge releases a large cloud of sperm in the water and when it passes by a female sponge of the same species it passes through special cells called archaeocytes. This funnels the sperm toward the egg cells already in the female sponge to create the larvae. Depending on the type of sponge, the female will either release the larvae soon afterward or store them and release them later. Asexual reproduction of a sponge happens when each individual sponge produces buds, or packets of several cells inside a protective covering which later develops into adult sponges.