Cancer cells take up the needed space and nutrients that the healthy organs would use. Because of that, the healthy organs can no longer function.
Answer:
anemia that is caused by a deficiency of iron and characterized by hypochromic microcytic red blood cells. Vitamin D
Explanation:
<span>So that the cells can function correctly. </span>
Many older people spend much of their time indoors. As a result, they are less exposed to the sun causing them to be vitamin D deficient.
