Question

excretory opening of porifera is

Answer 1

Hey.....

.....happy Holi.....

..........the excretory opening of porifera is called sponges.

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Answer 2

The excretory opening of Porifera is osculum.  

Explanation:  

• The osculum is present in the Porifera’s excretory opening, and these help in absorbing ammonia, carbon dioxide, and water through the process of diffusion.
• When mineral particles get stuck in this process as they are too big to pass on through the opening, they are left behind in the water.
• The excretory system of the Porifera is dependent on a water flow system.