Respiratory Adaptations: Altitude and Diving · NCERT Biology

One immediate physiological response to high altitude exposure is:

  1. Decreased breathing rate
  2. Increased breathing rate
  3. Reduced heart rate
  4. Decreased hemoglobin concentration
Show answer and explanation

Correct answer: Increased breathing rate

The body increases breathing rate to enhance oxygen intake. This helps compensate for reduced oxygen availability in the atmosphere.

Difficulty: Medium Question 2 of 20

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