Nitrogenous waste products are eliminated mainly as:
Correct answer: B. Ammonia in tadpole and urea in adult frog
- A. Urea in tadpole and ammonia in adult frog
- B. Ammonia in tadpole and urea in adult frog
- C. Urea in both tadpole and adult frog
- D. Urea in tadpole and uric acid in adult frog
Explanation
Ammonia is highly soluble in water, so in aquatic animals e.g., tadpole of frog, the nitrogenous waste products are excreted in the form of ammonia. In terrestrial animals e.g., adult frog, these wastes are excreted in the form of urea.
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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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