The tiny food particles are strained out of the water current by the choanocytes which pass them on to other cells. The digestion is intracellular. Planktons are the important food source for the filter feeders such as sponges.
The tiny food particles are strained out of the water current by the choanocytes which pass them on to other cells. The digestion is intracellular. Planktons are the important food source for the filter feeders such as sponges.