Question

Which one is an accessory excretory organ?

• A. Liver
• B. Stomach
• C. Intestine
• D. Heart

Answer 1

The correct option is A Liver

In addition to the urinary system, the skin, lungs, and liver of vertebrates are accessory excretory organs. Harmful chemicals, poisons, and other toxins, either produced inside the body or having entered from outside, are broken down and detoxified by the liver. For instance, ammonia, a poisonous substance produced as a byproduct of metabolism in the body is transformed into a less harmful substance, urea, which is then filtered by the kidneys and is discharged out of the body in the form of urine.

So, the correct answer is option A.