An organ that produces urea in humans beings is the
liver
The correct option is B.
Explanation of the correct option:
Explanation of the incorrect option:
Option A:
Kidney is the chief excretory organ i.e. it filters out and facilitates the excretion of the metabolic wastes generated in the liver and other body parts.
Option C:
Lung is an accessory excretory organ which helps in the elimination of the carbon dioxide generated during respiration.
Option D:
Urinary bladder is a muscular bag like structure which stores the urine after being produced in the kidney and empties when urination occurs.
Final answer: An organ that produces urea in humans beings is the liver.