Question

How does the name Porifera relate to the structure of the sponge?

Answer 1

Porifera originates from two words porous means hole and fera means bearing. The sponges are also covered by skin with several smaller pores. It is the first pore bearing multicellular animals. The pores are also called ostia.

Complete answer:
• Porifera are the lowest multicellular organisms with pores.
• Organisms that bear the pores in their body are called porifera.
• Sponges are the members of these porifera phylum. They are mostly found in the pond, lakes, and submerged water.
• Sponges don't have nervous systems, circulatory or digestive systems.
• These pores in sponges allow water to circulate between them.
• Sponges consist of numerous pores called ostia and osculum.
• Sponges are the diploblast which is surrounded by spongocoel.
• These one or more larger pore are called an osculum.

Additional information:
• The osculum is the excretory structure through which current water exits through the large opening after passing through the spongocoel.
• Sponges usually reproduce through the asexually by budding and fragmentation.

Note: The lowest hole bearing multicellular organism is called porifera. Sponges also belongs to the phylum porifera. These porifera had a sponges appearance that is called as sponges. These pores help in filtering food to the sponges. The sponges also had lots of pores in the body. These cells pump water to the entire parts of the body and help sponges to eat the food.