74. Lead poisoning

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A. reduces O2 carrying capacity of hemoglobin in blood
B. increases O2 carrying capacity of hemoglobin in blood
C. reduces O2 carrying capacity of myoglobin in muscles
D. increases O2 carrying capacity of myoglobin in muscles
✅ The correct answer is option A.
Lead poisoning reduces O2 carrying capacity of hemoglobin in blood.

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