This is from my general knowledge; I'm not an expert and I didn't look this up recently:Carbohydrates. The muscles burn blood glucose first, then they draw upon sugar stored in the muscle tissue itself, then they burn the fat, then they start eating themselves--but that only happens when they're being overexerted to the extreme and during starvation. That's my understanding anyway. Again, I'm no expert.
If this is for a simple school question, carbohydrates is probably the desired answer.
Heat energy.
Solar energy
Empty calories provide energy but lack essential nutrients such as vitamins, minerals, and fiber. Examples include sugary beverages, candy, and refined grains. Consuming too many empty calories can lead to nutrient deficiencies and weight gain.
Currently, the world relies most on fossil fuels such as oil, coal, and natural gas for energy production. These sources provide a large portion of the energy used globally for electricity generation, transportation, and heating.
Fiber
All complex cells contain mitochondria.
bad kind
It depends on the type of carbohydrate. Simple carbohydrates (or sugars), such as glucose and fructose, are absorbed into the bloodstream and provide an immediate energy boost, and are the most quickly turned into energy. Other carbohydrates, such as starch, take more time to digest and are probably similar energy wise as protein or fats. However, as far as containing the most energy in a given amount, fats beat all carbohydrates and proteins by far.
Substances in Biology that provide energy as the result of a chemical change are called?
A greenhouse uses solar energy to heat and provide light.
Producersproducers
Producersproducers