Question

A scientist is examining the role of an element found in fats and carbohydrates of living things. This element makes up 65% of human body mass.

Answer 1

Answer:He is studying oxygen, which can also be found in proteins.

Explanation:Human body is made of many elements and oxygen is one of them. Its percentage in human being is 65% and this oxygen can easily bind with proteins . The best example that oxygen that can be found in proteins is oxygenated hemoglobin .