Flex your brainpower: Take our quiz to test your human body knowledge!
Coin
0
pts
Fire
0
streak
Your Progress
- Location
You are here
Question 1 out of 20
0/20
Humans have just one of which of these organs?
Image Credit: MART PRODUCTION
Kidney
Stomach
Adrenal gland
Lung
Don't miss out on these
hand-crafted quizzes!
Beat the heat: A quiz for summer lovers!
Prove Your Worth As A Word Wizard In This Language Quiz!
Potatoes! Are you an expert on the world's most versatile food?