Q. Which factor affects blood viscosity?

  • (A) Water intake
  • (B) Red blood cell count
  • (C) Heart rate
  • (D) Lung capacity
✅ Correct Answer: (B) Red blood cell count
Explanation: Higher RBC count increases blood thickness and resistance.

Published by Roshan ⭐ 3.43K Points at 18-Apr-2026 04:10 pm in Biology

Explanation by: Roshan
Higher RBC count increases blood thickness and resistance.

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