Which organ in the human body is primarily responsible for filtering urea and other waste products from the blood?

💡 Solution & Explanation

The kidneys are bean-shaped paired organs responsible for filtering metabolic wastes, excess ions, and urea from the blood to produce urine, maintaining systemic fluid and electrolyte balance. Heart pumps blood, lungs exchange respiratory gases, and liver synthesizes urea and detoxifies metabolic byproducts. Nephrons serve as the functional structural units of filtration within each kidney.