I don't know if this is the correct answer but i think it is Immune System
Amino acids make proteins
Hunger is your body telling you that your body is hungry, appetite is you conscious telling you aren't hungry, although you probably are
The <span>component of physical fitness that enables you to lift a low-weight barbell many times is the muscular endurance. This component is the ability of a muscle to exert </span>effort<span> repeatedly with the given resistance or weight in the question. This is the ability of the body to endure the repeated actions that you are doing.</span>
