Which of the following is the main reason that humans need to include carbohydrates in their diet?
a. Carbohydrates act as catalysts to speed up chemical reactions.
b. Carbohydrates are broken down in cells for energy.
C. Carbohydrates combine to form many different proteins.
d. Carbohydrates are the building blocks for cell growth and repair.

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.