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Which outcome occurs when blood viscosity excessively increases inside a human circulatory system?

A)Reduced oxygen delivery to tissues
B)Increased red blood cell flexibility
C)Enhanced capillary blood vessel vasodilation
D)Decreased blood protein sedimentation rate

💡 Explanation

Increased viscosity elevates resistance, therefore reducing flow and oxygen transport; this occurs because of Poiseuille's Law rather than increased vasodilation or RBC flexibility, which would lower resistance or improving flow; protein sedimentation is density-related.

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