D. Have functions of absorption and elimination!
answer: A
pushing yourself to a limit so quick is not good for your body
1. asthma
2. lung cancer
3. COPD (Chronic Obstructive Pulmonary Disease)
4. pneumonia
5. autism
Answer:<em> Protein not only helps maintain muscle and bone mass, but it's also essential for body growth. Thus, deficiency or insufficiency is especially harmful to children whose growing bodies require a steady supply.</em>
<em />
