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Breathing and Exchange of Gases — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYBreathing and Exchange of Gases1 Mark
MCQ
When CO2 concentration in blood increases, breathing becomes:
  • A
    Shallower and Slow.
  • B
    There is no effect on Breathing.
  • C
    Slow and deep.
  • D
    Faster and deeper.
✓

Answer

  1. Faster and deeper.

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