What are ecologicaly importants of the sponges?
the importance of sponge is it can be a protection of fishAs Food.:Even though sponges are rarely taken as food by other animals, crustaceans are found leading parasitic life on them and some molluscs like nudibranchs depend on them for their diet.As commensals.:Sponges serve as protective houses for animals like crustaceans, molluscs, small fishes, etc. In addition to the protection, the animals that live inside the sponge get a rich food supply from the water circulating through them.Other uses: The dried, fibrous skeleton of many sponges like Spongia, Hippospongia and Euspongia are used for the purpose of bathing, polishing, washing cars, walls, furnitures, and scrubbing floor etc. The skeleton of some sponges like Euplectella are of great commercial value and used as decorative pieces.