https://www.khanacademy.org/science/telangana-class-10-biologyin/x58e314ef7f27e124:excretion/x58e314ef7f27e124:accessory-excretory-organs/e/role-of-lungs-skin-liver-large-intestine-in-excretion 2026-05-01T16:30:39.134904484Z Role of lungs, skin, liver, large intestine in excretion This exercise tests how different organs contribute to excretion beyond the kidneys, including the lungs, skin, liver, and large intestine. Through short scenarios, it links structure and function to the removal of gases, water, salts, bile pigments, and nitrogenous wastes. It also shows how environmental factors influence secondary excretory pathways while maintaining internal balance. Khan Academy exercise