Question

is the breathing organ of amoeba

Answer 1

Simple organisms, such as the amoeba and earthworm, have a moist,permeable external surface. Oxygen can pass into them through this surface by diffusion. A large surface area is needed for effective gas exchange - so larger, more complex, organisms have special organs such as gills and lungs.
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Answer 2

simple organism such as amoeba and earthworm have a moist, permeable external surface . oxygen can pass into them through this surface by diffusion . a large surface area is needed for effective gas exchange- so larger, more complex organism have special organs such as gills and lungs
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