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.
When it comes to cholesterol, it is better to have more HDL.
D,it never acceptable to ignore rules or etiquette but A, when no one else notices you ignored the rules.
CORNEA of the eye remains same throughout our life span
