Hemoglobin has five iron atoms that combine with oxygen gas in the lungs.
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Q12: Plasma accounts for about 55% of blood.
Q13: Smoking increases _ levels in the blood,
Q14: Heparin, histamine, and serotonin are secreted by
Q15: Hematopoiesis occurs in the _.
A) kidney
B) bone
Q16: The conversion of fibrinogen into fibrin is
Q18: Red blood cells pick up _ in
Q19: Clot retraction is called _.
A) embolism
B) syneresis
C)
Q20: Sickle-cell anemia is a hereditary disease in
Q21: An excessive amount of red blood cells
Q22: White blood cells as a group are
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