A dog's cells carry out many processes at once. Some cells are involved in muscle contraction and some are involved in growing fur.


Which statement tells the most important factor that allows cells to keep accomplishing their many processes?

Cells constantly produce usable energy in the form of ATP


Cells contain genes from two individuals, and the combination of genes result in genetic variation

New cells are always being made from old ones in the process of meiosis.


The phospholipid bilayer of the cell membrane is selectively permeable.