AT/ST Viking 02

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The human body is made up of trillions of tiny living cells that work together to keep us alive and healthy. These cells are like tiny little machines that can grow, repair themselves, and even make new copies of themselves. They're the building blocks of our bodies, and without them, we wouldn't be able to breathe, eat, or move around. In fact, our cells are so important that they make up about 60% of our total body weight!