Porifera: Phylum Porifera refers to a group

Phylum Porifera refers to a group of simple, sessile aquatic animals commonly known as sponges . Sponges lack true tissues and organs and have a porous body structure with numerous channels and chambers that allow water to flow through them. Sponge biodiversity and morphotypes at the lip of a wall site in 60 feet (20 m) of water. Included are the yellow tube sponge , Aplysina fistularis, the purple vase sponge , Niphates digitalis, the red encrusting sponge , Spirastrella coccinea, and the gray rope sponge , Callyspongia sp. Sponges are similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce sperm cells. Unlike other animals, they lack true tissues [12] and organs. [13] Some of them are ... 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. Phylum Porifera, also known as sponges , is a group of simple aquatic animals that lack true tissues and organs. Animals belonging to the Porifera phylum are the smallest multicellular creatures in the animal kingdom.