| The thickest part of your skin is ___mm |
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| The average person takes 7 minutes to do this |
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| The only mammals that can't jump |
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| A fingernail grows 1/__ inches annually |
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| This is how long it takes for food to go from the mouth to the stomach |
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| What human body structure weighs 28 grams and is part of the face? |
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| Over 90% of diseases are caused or complicated by this |
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| Every three minutes, a woman is diagnosed with this disease |
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| This type of attack most often occurrs between 8 and 9 am |
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| 20% of the body's oxygen goes here |
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| This is the hardest substance in the human body |
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The Nine Planets 
Digits of Pi 
Multiplication Table
