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- #Multiple Choice Questions (MCQs)
The following substances are the excretory products in animals. Choose the least toxic from among them.
(a) Urea (b) Uric acid (c) Ammonia (d) Carbon dioxide
Answers (1)
The answer is the option (b) Uric acid
Explanation: The level of toxicity can be shown as below with ammonia being the
most toxic.
Ammonia;
Urea;
Uric acid
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