Respiratory Adaptations: Altitude and Diving · NCERT Biology

Which respiratory adaptation is commonly seen in native high-altitude mammals?

  1. Comparatively smaller lung size to reduce weight
  2. Substantially reduced alveolar surface area for gas exchange
  3. Higher lung ventilation efficiency
  4. Lower capillary density in lung tissue
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Correct answer: Higher lung ventilation efficiency

High-altitude mammals have more efficient lung ventilation. This allows better oxygen uptake under hypoxic conditions.

Difficulty: Medium Question 5 of 20

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