Biology, asked by Tejomahima7, 2 months ago

excretory system of protozoa is............?

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Answered by Anonymous

1

Protozoans have no excretory organs. The metabolic waste products i.e. ammonia is passed out by diffusion through the cell membrane in surrounding water. They carry out the process of excretion with the help of contractile vacuoles. Sponges : Ammonia is the main excretory product in sponges.

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