Phylum Porifera means “pore-bearing” animals . They are simple, multicellular organisms with bodies full of holes (pores) that help circulate water and filter food particles. Unlike more advanced animals, sponges do not have true tissues or organs. Learn about sponges, the primitive animals with porous bodies and water canal systems. Find out their general features, modes of reproduction, classification and examples of sponges. Learn about the most primitive animals, sponges, which belong to the phylum Porifera . Find out their characteristics, types, anatomy, reproduction, and ecological and evolutionary significance. Phylum Porifera are the lowest multicellular animals belonging to the kingdom Animalia. The word “ Porifera ” mainly refers to the pore bearers or pore bearing species.
