Answer: oxygen
Explanation:
The medical condition described here is anaemia. It is a blood cell disorder whereby the red blood cell doesn't function properly and hence doesn't carry enough oxygen to the tissues. This is usually caused when ones body is deficient of iron.
The symptoms that may occur to such patients are weakness, fatigue, headache and pale skin.
Based on the explanation, the answer is oxygen
Protein because of the lack of meat
Based on biology of living things, some of the physical changes associated with the aging process are:
- Loss of bone mass
- decreased muscle mass
- thinning of the heart
- stiffening of the arteries
- decreased lung capacity, etc.
<h3>What is aging?</h3>
Aging is a natural process that occurs in living organisms when they become older or as time passes.
During aging, certain physical changes that usually result in reduced abilities of normal body functions occur which are the observable features of aging. They include:
- Loss of bone mass
- decreased muscle mass
- thinning of the heart
- stiffening of the arteries
- decreased lung capacity, etc.
Therefore, some of the physical changes associated with the aging process are:
- Loss of bone mass
- decreased muscle mass
- thinning of the heart
- stiffening of the arteries
- decreased lung capacity, etc.
Learn more about aging at: brainly.com/question/21253492
