<span>The set point theory is when your metabolism adjusts to keep your body weight consistent. It says that humans have predetermined body weight or fat content and they body closely regulates your metabolism accordingly.</span>
Answer : Option A) He is studying oxygen, which can also be found in proteins.
Explanation : A scientist is examining the role of an element found in fats and carbohydrates of living things. Oxygen is the element which makes up to 65% of human body mass. This is also found in proteins inside the body.
