How many bones are there in a normal adult human
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206
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What is the hardest substance in the human body
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Tooth Enamel
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What % of the human brain is water
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85%
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What is the largest artery in the human body
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Aorta
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The white crescent part of a fingernail is called
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Lunula
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What is the name of the substance that gives skin, eyes and hair their pigment
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Melanin
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What is the name of the biggest part of the human brain
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Cerebrum
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On average, how long does a single blood cell take to complete one circuit of the human body
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60 Seconds
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What is the smallest muscle in the human body
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Stapedius
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What is the largest bone in the human body
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Femur
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