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Cool facts about the human body Flashcards | StudBud
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Cool facts about the human body
Cool facts about the human body
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Answers
1
How long do you sleep each night?
6 hours
9 hours
10 hours
8 hours
2
How long does an eyelash live before they fall out?
30 days
150 days
60 days
1 year
3
Which never stop growing?
hair and nails
ears and hair
nose and ears
nose and eyes
4
What's the only part of the human body that can't repair itself?
teeth
eyes
ears
skin
5
How many times a day do we blink our eyes?
5,000
20,000
500
1,000
6
Human teeth are as strong as...
vampire teeth
shark teeth
alligator teeth
dog teeth
7
What percent of your body is made of water?
25%
60%
90%
10%
8
How fast is a cough?
100 mph
200 mph
60 mph
10 mph
9
How fast does hair grow?
6 inches a year
2 inches a year
3 feet a year
1 foot a year
10
How many smells can a human nose detect?
five thousand
a million
a trillion
five hundred
11
What sense gets worse with age?
sight
smell
hearing
taste
12
How fast does the sneeze come out of your nose?
10 mph
100 mph
50 mph
200 mph
13
What is the strongest muscle in the body?
neck
leg
arm
jaw
14
How much does the average brain weigh?
5 pounds
1/2 a pound
3 pounds
1 pound
15
Why do humans have goose bumps?
to show we are scared
to warm you up
to show we are cold
our hair would stand on end appear fierce to predators
16
Which animals are the best at long distance running?
alligators
humans
lions
lizards
