Question

A common chamber in sponge is

• A. Incurrent canal
• B. Radial canal
• C. Excurrent canals
• D. Spongocoel

Answer 1

The correct option is D Spongocoel

A. Incurrent canals are the openings in the body of sponges through which water enters from outside.

B. Radial canals are the small radial or flagellated chambers in the body of sponges that are lined by choanocytes or collar cells.

C. Excurrent canals are the openings in the body of sponges through which water flows out..

D. Spongocoel is the central cavity in the body of sponges which opens to outside through osculum. It is common to all sponges.

Hence, common chamber in sponge is spongocoel.

So, the correct answer is 'Spongocoel'.