So you won't sprain any muscles or hurt yourself.
The mean of the population is equal to 55
<span>the population proportion is not less than .65
</span>
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.
B. When the environment is damaged, our health improves
