TIRADOR FLOR.3ds

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The human body is made up of billions of cells that work together to keep us alive and functioning properly. Each cell has its own unique job, from muscle cells that help us move to nerve cells that allow us to think and learn. The heart beats around 3 billion times in a person's lifetime, pumping over 1.5 million barrels of blood through our veins. Our skin is the largest organ in the body, covering an area of about 22 square feet. It protects us from damage and helps regulate our body temperature.