Changes in the size of population , age and race
Answer:
the answer I'm pretty sure its (D. Wearing your seatbelt)
Explanation:
have a great day peeps :)
CO2 from the blood is released from the blood cells into the alveoli for exhalation while O2 from the alveoli is received into the blood cells to deliver oxygen to other parts of the body
<span>cardiorespiratory endurance</span>
