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Why is blood red if u get it u will get 21 points
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Why is blood red if u get it u will get 21 points

User Joshua Dale
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Blood is actually blue, but it turns red when it mixes with oxygen.
User Stakahop
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The hemoglobin protein in your blood is made up of subunits called "hemes". Those hemes are what give blood its red color.
User Sebastian Rosch
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