Answer:
Choanocytes
Explanation:
Choanocytes are membranous flagellate cells lining the spongiocelium (central body cavity of Porifera kingdom animals) and other internal vibrating chambers of sponges.
The movement of its flagella creates the water stream that brings nutrients and gases. The nutrients are filtered by the choanocyte, which is not a solid structure, but rather a set of small erect rods separated by spaces.
Any organic particle or plant microorganism trapped in the choanocyte is routed down toward the cell body and endocyted, with intracellular digestion occurring in digestive vacuoles.
