Describe the process of respiration in Amoeba. State whether it is anaerobic respiration or aerobic respiration.

Explanation

(1)Amoeba and hydra are aquatic organisms
(2)Respiration in them occurs through diffusion.
(3) As oxygen is used by these organisms in respiration its concentration is reduced in cytoplasm and hence oxygen diffuses into cytoplasm from surrounding water .
(4)Due to respiration `CO_2` is continuously produced, its concentration increases in the cytoplasm, hence it diffuses into surrounding water.