Regulation of respiration - class-XII
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Multiple Choice
Forced deep breathing for a few minutes by a person sitting at rest may be
followed by a temporary cessation of breathing. This is due to
- Too much $O _2$ in the blood
- Too much $CO _2$ in the blood
- Very little $CO _2$ in the blood
- Both too much $O _2$ and very little $CO _2$ in the blood