The correct answer is phosphorylation. When an ADP (Adenine Diphosphate) molecule gains a phosphate, it becomes an (Adenine Triphosphate) molecule. This process is called a phosphorylation. Phosphorylation and its counterpart dephosphorylation change many proteins in terms of its functions and activities.
The kinetic energy of an object depends on both its mass and its speed. Kinetic energy increased as mass and speed are increased.
C. Mammary gland. Hope this helps!