Answer: Natural Selection. Natural Selection leads to an evolutionary change when some individuals with certain traits in a population have a higher survival and reproductive rate than others and pass on these inheritable genetic features to their offspring.
Explanation:
Metabolism (pronounced: meh-TAB-uh-liz-um) is the chemical reactions in the body's cells that change food into energy. Our bodies need this energy to do everything from moving to thinking to growing. Specific proteins in the body control the chemical reactions of metabolism.
Active transport requires the help of carrier proteins, or “pumps”. ... Active transport is key to the function of a cell. It helps the cell control how much of certain ions such as water, sodium, or potassium pass through the cell membrane. Without active transport, a cell would not be able to maintain homeostasis.