Which of the following is true?

a. some substances must be dissolved in water before they can be used.

b. water is more important to some organisms.

c. all organisms obtain water through food.

d. plant cells are unaffected when water is scarce.

There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for 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