Nitrogenous waste products are eliminated mainly as:
Correct answer: B. Ammonia in tadpole, urea in adult frog
- A. Urea in tadpole, ammonia in adult frog
- B. Ammonia in tadpole, urea in adult frog
- C. Urea in both tadpole and adult frog
- D. Urea in tadpole, uric acid in adult frog
Explanation
Aquatic tadpoles excrete ammonia; terrestrial adults conserve water via urea excretion.
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About Homeostasis
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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