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Nalu Nalu
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6 years ago
Which mineral is the essential component of hemoglobin in the red blood cells, transferring oxygen from the lungs to the tissues?
 A) Iron
  B) Folate
  C) Magnesium
  D) Calcium
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scates8scates8
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Nalu Author
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6 years ago
Thanks
Helpmeplease11
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Yesterday
this is exactly what I needed
deathDoUsPart
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2 hours ago
Good timing, thanks!
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