Spongocoel is also known as-

• (a) Paragastric cavity
• (b) Gastrovascular cavity
• (c) Water vascular cavity
• (d) Coelenteron

The term "spongocoel" refers to the central cavity found in sponges. It is specifically known as the paragastric cavity. Therefore, the correct answer to your question is (a) Paragastric cavity.

Understanding Spongocoel

The spongocoel plays a crucial role in the sponge's ability to filter water and obtain nutrients. Here are some key points:

• Location: It is located in the center of the sponge.
• Function: It helps in the circulation of water through the sponge's body.
• Structure: The walls of the spongocoel are lined with specialized cells called choanocytes.

Related Terms

It's important to differentiate spongocoel from other cavities:

• Gastrovascular cavity: Found in some animals, it serves both digestive and circulatory functions.
• Water vascular cavity: A system in echinoderms used for locomotion and feeding.
• Coelenteron: The central cavity in cnidarians, involved in digestion.

Understanding these terms helps clarify the unique characteristics of sponges and their anatomy.