Frank Carlson Library

Join award-winning science writer Seymour Simon as he explores one of the most important systems of the human body: the digestive system! Ever wonder how food like pizza or spaghetti moves through our body? It all happens in our digestive system, otherwise known as our guts. Working twenty-four hours a day, it makes sure the food we eat turns into energy, nutrients, and waste. In this revised edition, featuring clear text and stunning full-color...