Amoeba remove wastes through

Contractile vacuole

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Endoplasmic reticulum

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Mitochondria

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Cell membrane

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Solution

The correct options are
A
Contractile vacuole

D
Cell membrane

Single-celled organisms do not have complex mechanisms for the process of excretion. They remove wastes by simple diffusion into the surrounding water through the cell membrane. Amoeba do not have a specific excretory organ. Contractile vacuole plays an important role in excretion. Along with extra water, it removes other waste products.

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