Which of the following organs in the human body does NOT appear in pairs?

Correct option is C

The organ in the human body that does NOT appear in pairs is Mouth.
· We have two kidneys, one on each side of the back.
· We have two eyes, one in each socket.
· We have two lungs, one on each side of the chest cavity.
· We only have one mouth, the opening in the face that allows us to take in food and drink.