Which of these is an excretory organ of the human body?

Correct answer: Skin

Explanation: ✅ Correct Answer: B) Skin 📚 Explanation: The skin functions as an essential excretory organ in the human body by eliminating excess water, salts, and small amounts of urea through the process of sweating. This function is managed by millions of specialized sweat glands. While its primary role is protection and temperature regulation, sweating helps the body remove metabolic waste products. This support maintains the internal chemical balance alongside the kidneys.