How do sponges catch their prey and eat?

Sponges are filter feeders, which means that they take sea water into their bodies and filter out the microorganisms that live there.  This water is brought into the body through the pores of the sponge via the movement of falgellae.  As the water passes through the sponges, the nutrients are extracted and then the water is ejected out a larger tube or opening along with waste from the animal.