food is oxidized meaning it reacts with oxygen and CO2, H2O and energy in the form ATP is produced
your body digests food which turns it in to energy that goes through your bloodstream to all parts of your body
chemical energy from food turns into kinetic energy in the moving body of the runner.
They do this like all other mammals. The food is digested in the digestive system where the body turns it into energy for it to use.
You obtain the energy from the food you eat, when you breath your body breaks down the food and turns it into energy that it can use ATP molecules.
Food energy is used for heat and motive energy (muscle contraction).
You ingest the food that you eat and the vitamins that you swallow. Your stomach turns it into human energy and then it goes to all of your body parts by veins.
Your metabolism is how fast your body turns food into energy. I don't know what you mean by "size of indiviual."
The chemical energy of food provides energy to us. When food is burnt, energy is released.
Food has vital nutrients and stuff. An animal's body breaks the food down and turns it into energy, which is then distributed to the cells and that way the animal doesn't die.
photosynthisis
producers
Chemical energy lies within the food that organisms eat. Digestion turns the chemical energy into mechanical energy, which can be used to fuel the organs, tissues and cells.