What in a sponge transport food?

In sponges, food is transported primarily through the movement of water facilitated by specialized cells called choanocytes. These cells have flagella that create water currents, drawing in water and trapping tiny food particles like bacteria and plankton. The trapped food is then engulfed by the choanocytes through phagocytosis and can be passed on to other cells, such as archaeocytes, for digestion and distribution throughout the sponge's body. This simple yet effective system allows sponges to efficiently filter and process food from their aquatic environment.