I think the answer is intensity
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.
B below
The hypothalamus is located at the bottom or below the thalamus. The name hypo means below or at the bottom. Hypothalamus is an organ reponsible for maintaining body temperature, regulating bodily hormones and basic drives such as sex, hunger and thirst. The organ is part of the limbic system which has a role on emotions and memory.
<span>Fat-soluble vitamins: A, D, E, and K — are stored in the body for long periods of time, and pose a greater risk for toxicity than water-soluble vitamins. Fat-soluble vitamins are only needed in small amounts.
So your answer would be D</span>. Vitamin D