Does carbonhydrates provide the most energy or kilocalories per gram of food ?

The amount of energy you'll get from carbohydrate, protein and fat is measured in calories per gram fats have the most energy and proteins have the same amount as carbohydrates, but their value as a source of energy is determined by more than the calories gained from one gram.

It is evolution, because we all have some of the same traits like eye color or shape or ears.

Only algae, oak trees, and bermuda grass produce atp by photosynthesis i am almost positive