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The normal respiratory rate in a healthy resting adult is around 12-16 breaths per minute.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Respiratory Disorders - Asthma Emphysema Occupational Disorders
Nitrogen is not involved in the regulation of breathing rate, unlike CO₂, O₂, and blood pH.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Transport of Carbon Dioxide and Regulation of Respiration
Oxygen levels do influence breathing rate, especially in cases of severe hypoxia.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Transport of Carbon Dioxide and Regulation of Respiration
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