Answer: To maintain Cellular respiration
Explanation:
The body must take in oxygen so that the blood cells can absorb it. This allows the blood cell to release CO2. Therefore, Inhaling oxygen is necessity for maintaining cellular respiration.
Roughly 80%. not sure if you had answer choices or not..
Answer:
Explanation:
Their lungs grow less than children who do not breathe secondhand smoke, and they get more bronchitis and pneumonia. Wheezing and coughing are more common in children who breathe secondhand smoke. Secondhand smoke can trigger an asthma attack in a child.
A. Because the call isn’t urgent and he politely acknowledged the call, but asked if he can call back later since it isn’t urgent