ocr: ABOUT THE iE - - BODY MACHINE What happens when you sleep? Whydo you blink? How do e you hear? DI BODY BODY BODY MACHINE ORGANS SYSTEMS How swallow? do you chew Why your do food? you How do How often reflex does your actions work? heart beat? BODY MACHINE How FIND OUT MORE What do your are you joints move? made of? BODY MACHINE
