EVERYDAY SCIENCE

Detailed explanation-1: -The phylum name Porifera means pore-bearing. Sponges take their name from small holes that cover their bodies.

Detailed explanation-2: -The name porifera means ‘pore bearer’ in Latin (a pore is a tiny hole). A sponge’s body is covered by a skin, one cell thick. This skin has lots of small pores and a few large openings. The small openings are the entrances to a complex system of channels.

Detailed explanation-3: -Pore-bearing animals are multicellular organisms that belong to the phylum Porifera, and sponges form an important member of this phylum. The phylum consists of mainly marine water sponges such as Euspongia, Scypha, etc., and some freshwater sponges such as Spongilla.

Detailed explanation-4: -The pores are known as Ostia. The poriferans have a spongy appearance and are therefore called sponges.

Detailed explanation-5: -Hint: Pore bearing animals are the simplest form of animals that contain pores throughout the body with one large opening. These animals are found in seas and oceans with very few in freshwater too. Complete answer: Porifera is the phylum that includes the animals with spores on the body.