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4 September, 20:46

Why is your blood red

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Answers (2)
  1. 4 September, 22:47
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    What makes it red is the subunits that our hemoglobin proteins are made of which is called hemes
  2. 4 September, 23:21
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    Our blood is actually blue but turns red as it is exposed to air. So inside the human body it is blue but when you cut yourself it instantly turns red due to air exposure.
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