There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. Take fo
r example the cells that line the digestive tract. These cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. What mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell
I believe its D, it makes the most sence to me. as The substance is based on the arrangement there in and the type of atom the matter is made from.<span />
