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KB 4 - Unit 3 - P 32 33

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    Human body
  •   Study   Slideshow
  • How many bones are there in the human body?
    There are 206 bones in the human body.
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  • How many bones are in the hands and feet?
    More than half these are in the hands and feet.
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  • How many percent water are bones about?
    Bones are about 22 percent water.
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  • Does blood carry carbon dioxide to our muscles?
    No, it doesn't.
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  • What does blood carry to our muscles?
    Blood carries oxygen to our muscles.
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  • How many blood groups? What are they?
    There are four blood groups. They are A, B, O and AB.
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  • What is the most common blood type?
    The most common is type O
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  • How many muscles in the human body?
    There are more than 600 muscles in the body.
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  • What can muscles do?
    Muscles can move our body.
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  • What do muscles need to work well?
    Muscles need oxygen to work well.
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  • Is our heart a bone?
    No, it isn't.
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  • What do the heart do?
    It moves blood around our body.
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  • How many times a minute does the heart beat?
    The heart beats about 72 times a minute.
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  • When we breath, do we take carbon dioxide from the air into our body?
    No, we don't.
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  • What do our lungs do?
    They pass the oxygen to our blood.
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