Humorous text and illustrations follow an apple's journey through the human digestive system. Discover why mucus is so important to your body and how food particles are absorbed by the small intestine and turned into energy. Readers also learn why we burp, vomit, and pass gas.
Humorous text and illustrations follow an apple's journey through the human digestive system. Discover why mucus is so important to your body and how food particles are absorbed by the small intestine and turned into energy....
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