metabolism of fats.
You didn't include "the following", but it's almost exclusively by radiation.
No, horseshoe crabs are consumers, meaning that they get their energy by eating (or absorbing, but not in this case). Producers make their own food, almost exclusively from the sun.
The protosun has not fully "ignited" meaning nuclear fusion is not stably providing the energy output of the star. Once ignition takes place, the central core of the sun will produce energy almost exclusively through fusion, creating enough energy and radiation to slowly wash away the nebulous gas surrounding the protosun revealing the sun itself.
Cardiac cells are very active. A lot of energy is needed
Heart is a very active organ. It functions through out the life. It needs a lot of energy.
The red blood cells in the body completely rely on glucose, which is a carbohydrate, for energy. Adipose tissue and muscles cells partially rely on glucose as well.
You can use a cardiac defibrillator to delivery electrical energy to a patients heart by the use of electrodes. This is commonly used on patients with cardiac dysrhythmias or ventricular fibrillation.
True
glucose. glucose is used exclusively in the cellular resipration cycle in combination with oxygen(when present) to create ATP molecules which opperate in almost every reaction taking place in your body.
glucose
You can convert almost any type of energy into almost any other type of energy.
The answer is brain. Your brain is almost exclusively depends on the glucose as energy source. You lose the consciousness very rapidly, if blood supply to the brain is hampered by any reason.