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The Human Body: True or False

Answer these true/false questions about the human body.
Quiz by islabonita
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Last updated: April 26, 2021
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First submittedApril 26, 2021
Times taken112
Average score56.0%
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1. The average human will shed 40 pounds of skin in their life
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True ✓
False ✓
2. The acid in your stomach doesn’t eat through your body because the stomach cells are renewed faster than they are destroyed
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False ✓
True ✓
3. Your stomach acid is strong enough to dissolve razor blades
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False ✓
4. Your brain uses up about 20% of all your body’s oxygen and calories
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True ✓
5. Apart from identical twins every single person on Earth has a unique smell
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False ✓
6. A higher IQ is correlated with more dreams
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False ✓
7. You are about 1 cm shorter at night.
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This is because the cartilage between your bones is compressed throughout the day
8. your feet have half a million sweat glands that produce over a pint of fluid everyday
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9. Women blink twice as much as men
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10. Men get hiccups twice as much as women
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11. During your lifetime, you will produce enough saliva to fill two swimming pools.
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12. After eating too much, your hearing is less sharp
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13. By age sixty you will have lost half your taste buds
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14. Babies can only see black and white when they are born
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15. Your cornea is the only part of your body without a blood supply. It gets its oxygen directly from the air
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16. 80% of your brain is water
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17. The average life span of a human hair is 3-7 years
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18. A full bladder is roughly the size of a softball
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19. Your teeth start growing 6 months before you are born
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20. Most babies, of all races, are born with blue eyes
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True ✓
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Exposure to ultraviolet light (the sun) and melanin are what eventually bring out their true colour
21. You have five senses
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True ✓
You have way more than 5 senses. Scientists estimates range from 22 to 33 human senses
22. Fingernails and hair continue to grow after death
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False ✓
True ✓
Our bodies don’t keep growing fingernails and hair after death. To do that, our bodies need to produce new cells — something that simply isn’t possible after death
23. Swallowed chewing gum takes seven years to digest
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24. Most of your body heat escapes through your head
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True ✓
25. Some people are double-jointed
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True ✓
False ✓
No one is born with extra joints, but some are born with joints that are extra flexible.
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