Lipids would be the answer that you are looking for. When talking food energy it's best to speak in terms of calories. Therefore, lipids or fats offer the greatest amount of heat or energy.
Answer:
my guess is C
Explanation:
All you have to do is eliminate the ones that don't make sense and c is the only one left
The inputs are glucose and oxygen and the outputs are water and carbon dioxide.
Radiation is responsible for the greatest loss of energy.
