EVERYDAY SCIENCE

Detailed explanation-1: -Sponges constitute the phylum Porifera, and have been defined as sessile metazoans (multicelled immobile animals) that have water intake and outlet openings connected by chambers lined with choanocytes, cells with whip-like flagella.

Detailed explanation-2: -Sponges belong to phylum Porifera based on their characteristics, including that they are invertebrates, are made of cells that are not organized into true tissues and they have porous bodies through which water is able to flow. Sponges are the only members of Porifera.

Detailed explanation-3: -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. Based on the embryological studies, sponges are proved as animals and are classified into a separate Phylum in animals.

Detailed explanation-4: -Sponges (Porifera) are members of the Kingdom Animalia. They are invertebrates. 3. Sponges are divided into 3 main classes which are: Class Calcarea, Class Hexactinellida, and Class Demospongiae.

Detailed explanation-5: -The approximately 5, 000 living sponge species are classified in the phylum Porifera, which is composed of three distinct groups, the Hexactinellida (glass sponges), the Demospongia, and the Calcarea (calcareous sponges). Sponges are characterized by the possession of a feeding system unique among animals.