Assertion: sponge's cell | /r/AtLocation | the mesohyl
Facets:
Source sentences:
text: Other cells found in the mesohyl include each of the following, some of which are responsible for signaling the sponge to contract or to act as a sponge’s unique version of an immune system, while other cells are responsible for producing and secreting collagen; secreting polysaccharides and spicules; reproduction; feeding; removing debris and waste products; and transforming into a different type of cell based on the needs of the sponge: