Question

respiration in amoeba and hydra occurs by

transpiration
osmosis
diffusion
inhalation​

Answer 1

Answer:

1) Amoeba has no special respiratory organs so, there is a free exchange of gases through the general body surface by diffusion as the body surface is permeable to the gases dissolved in water.

2)Hydra too has no respiratory organ a respire by diffusion.

Explanation:

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Answer 2

Answer:

Respiration in amoeba and hydra occurs by diffusion.