Biology · Excretion in Animals
Which of the following statements is true about excretory systems in animals?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Human urine normally consists of 50% water and 50% urea.
- 2Land animals like lizards excrete nitrogenous waste primarily as ammonia gas.
- 3Aquatic animals have no need to excrete metabolic wastes.
- 4The major nitrogenous excretory product in humans is urea.✓
Correct answer
The major nitrogenous excretory product in humans is urea.
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