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The main nitrogenous waste of Hydra is

The main nitrogenous waste of Hydra is

Options

(a) Ammonia only
(b) Urea only
(c) Uric acid only
(d) Both (a)Ammonia only and (c)Uric acid only

Correct Answer:

Ammonia only

Explanation:

The main nitrogenous waste of Hydra is ammonia. Hydra has no organ of excretion, therefore, excretion of waste nitrogenous matter occurs directly by diffusion through all membrane.

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