Confusing but ok
1. Bronchi
2. Trachea
3. Pharynx
4. Alveoli
5. Larynx
Because the more someone exerts themselves the more oxygen and carbon dioxide out put ratio is greater. The more you run and the faster you run the more oxygen you loose which is supplied to your muscles including your lungs.
Energy balance refers to the relationship of energy intake to energy expenditure.
