Question

how do protozoans excretes the waste substance​

Answer 1

Answer:

here is your answer

Explanation:

Excretion in Protozoa:

Waste products are water, carbon dioxide and nitrogenous compounds and remain in soluble forms. Waste materials are passed out of the body by diffusion or by the contractile vacuoles. This excess water interferes with the body functions and is eliminated by the discharge of contractile vacuole.