??? ??? Budding form of asexual reproduction; group of cells on outer surface of sponge that grows into a tiny new sponge that later drops off ??? ??? ??? Fragmentation form of asexual reproduction; production of a new sponge from pieces that are broken off by things such as waves or storms or predators ??? ??? ??? Desmospongia largest class of phylum porifera; made of spicules consisting of the