Science & Body quiz
Human Body Quiz: Can You Get All 12 Right?
Human body quiz: how well do you know the body you live in? Test yourself with 12 trivia questions about bones, blood, organs, skin and more, going from easy to hard, with surprising human body facts after the answers. Play along, keep score and comment how many you got right. Which fact about the…
- 12 questions
- 3 min
- 5 Easy
- 4 Medium
- 3 Hard
Human Body Quiz: Can You Get All 12 Right?: questions and answers
Try to answer first, then tap a question to see the answer.
What is the largest organ of the human body? Skin · Liver · Brain
Skin
How many bones does an adult human have? 186 · 206 · 212
206 – Babies are born with about 300 bones, and many fuse as they grow.
About how much of an adult's body is water? About 30% · About 60% · About 90%
About 60%
Which of these organs can regrow itself? Heart · Lungs · Liver
Liver – The liver can grow back to full size even after losing half of it.
How many times does your heart beat in one day? About 100,000 · About 10,000 · About 1 million
About 100,000
Where is the smallest bone in your body? Toe · Nose · Ear
Ear – The stirrup bone in your ear is only about 3 millimeters long.
At what time of day are you the tallest? Morning · Afternoon · Night
Morning – By evening your spine squeezes down and you can be 1 cm shorter.
Which blood type can be given to almost anyone? O negative · AB positive · A negative
O negative
Which body part takes its oxygen straight from the air? Tongue · Eye · Nose
Eye – The cornea has no blood vessels, so it gets oxygen from the air.
What is the hardest substance in the human body? Thigh bone · Fingernail · Tooth enamel
Tooth enamel
Which animal shares the most DNA with humans? Gorilla · Chimpanzee · Orangutan
Chimpanzee – Humans and chimpanzees share about 98.8 percent of their DNA.
How often does your stomach replace its inner lining? Every 3 days · Every year · Never
Every 3 days – It sheds about 500,000 cells a minute to survive its own acid.