Respiratory Adaptations: Altitude and Diving · NCERT Biology

Erythropoietin secretion increases at high altitude primarily to:

  1. Reduce the body's overall demand for oxygen
  2. Stimulate red blood cell production
  3. Increase total lung volume and capacity
  4. Lower breathing rate to conserve energy at altitude
Show answer and explanation

Correct answer: Stimulate red blood cell production

Low oxygen levels stimulate erythropoietin release from kidneys. This hormone increases red blood cell production to improve oxygen transport.

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