동아사이언스

바다탐험

과학동아 1997년 06호

that connect to the open pores on their surface. Sponges feed by drawing a current of water in through their pores, filtering out the nutrients, and then ejecting it out through an opening. Many sponges on the reef resemble some of the corals in shape and color, but upon closer inspection the difference is apparent. They are one of the many life forms unique to the ocean environment.Corals & ...