Respuesta :
Answer:
Plants and animals are the main source of food for all the organisms on earth. Food obtained from animals is the main source of protein and include fish, milk, meat, poultry, and cheese. Whereas plants provide us with fruits and vegetables, which are an important source of fibres, proteins and carbohydrates.
Food is the main source of energy and of nutrition for animals or humans, and is usually of animal or plant origin. There are a few energy sources like: fats, proteins, carbohydrates and alchol.