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The Human Machine
In many ways, your body is like a wonderful machine. Each of the many different parts of your body has a special job to do. Your bones and muscles work together to make you move. Your heart pumps blood round and round your body. Your lungs take in a gas called oxygen from the air. The most complicated part of your body is your brain, which controls all the other parts.rnMachine need fuel to make them work. Cars need petrol, for instance. The fuel for the human machine is food. You need a regular supply of food to keep your body working properly.
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