The body is biological machine. All machines need fuel. Food is fuel. Its converted to calories which energize the body. Food is also basic maintence, providing vitamins, minerals, fats and water to keep the body healthy and functioning.
10 months ago
Last edited at 7:15PM on 5/6/2013
If humans and other animals did not eat, then there would be too much food on our planet, which would lead to overcrowding. Some scientists believe that this overcrowding could potentially cause the human race to become extinct, simply because we would have no room to live. This is why our early ape ancestors started devouring the wild hamburgers and pizza that roamed the prehistoric world. And it is because of this early adaptation that we survive today.