1 is Exercising
2 is bodies
3 is mechanics
Answer:
Explanation:
inspiration 1. inspiratory muscles contract. ...
inspiration 2. thoracic cavity volume increases.
inspiration 3. lungs are stretched. ...
inspiration 4. intrapulmonary pressure drops.
inspiration 5. air flows into lungs down pressure gradient until pulmonary pressure is 0.
The answer would be d.eating nutritious meals
Answer:
Girls can start their periods anywhere from age 10 upwards, but the average is around 12 years.
