Respiratory Adaptations: Altitude and Diving · NCERT Biology

Which blood adaptation helps people living at high altitudes transport more oxygen?

  1. Lower red blood cell count
  2. Higher hemoglobin concentration
  3. Reduced blood viscosity
  4. Decreased erythropoietin secretion
Show answer and explanation

Correct answer: Higher hemoglobin concentration

High-altitude residents have increased hemoglobin levels, improving oxygen-carrying capacity. This adaptation enhances oxygen delivery to tissues.

Difficulty: Medium Question 3 of 20

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