Question

12. The excretory product of the
sponges thrown outside the body
through:​

Answer 1

Answer:

It is considered that the contractile vacuoles also play some role in the removal of excretory products. (2) Sponges: In sponges, the nitrogenous metabolic waste (ammonia ) leaves the body in the outgoing water current by diffusion. Most of the sponges are marine and have no problem of surplus water in their cells.

Explanation:

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Answer 2

Answer:

The excretory product of the

sponges thrown outside the body

through Osculum.