ANATOMY

Detailed explanation-1: -Lungs and liver do not excrete nitrogenous wastes. Lungs excrete water as water vapor and carbon dioxide along with expired air.

Detailed explanation-2: -So, the correct answer is ‘Pancreas’.

Detailed explanation-3: -Kidneys are a pair of organs present behind the abdominal cavity in either side of the backbone in humans. It is the major excretory organ in the human body. Its main function is to filter waste and excess fluid from the blood and production of urine.

Detailed explanation-4: -Nitrogenous wastes which are removed by the kidneys are urea and ammonia. Urea is the main excretory product that is filtered and excreted out from the blood by the kidneys. Ammonia is mostly converted into urea in the liver and excreted out in the urine.