Large muscles grow before small muscles grow.
Answer:
e
Explanation:
opens up air way makes lungs syronger
Answer:
green stick fracture
Explanation:
most common in children as their bones are less dense
Answer:
<em>Pulmonary surfactant.</em>
Explanation:
It is essential for life as it lines the alveoli to lower surface tension, thereby preventing atelectasis (a complete or partial collapse of the entire lung or area (lobe) of the lung) during breathing.