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    Biology
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    Human Anatomy
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    Exam 12: Blood
  5. Question
    Only 4 Atoms of This Trace Element Are Present in Hemoglobin,but
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Only 4 Atoms of This Trace Element Are Present in Hemoglobin,but

Question 10

Question 10

Multiple Choice

Only 4 atoms of this trace element are present in hemoglobin,but they mark the 4 binding sites for oxygen.


A) nitrogen
B) carbon
C) hydrogen
D) iron
E) none of these

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