The human body consists of cells. There are all shapes and sizes that vary a lot. Called the tissue. The tissue of the same type or different types of. Several organs, organs, and organ, called the work an important coordination system is different in the body, such as the urinary system consists of a tubular renal kidney bladder and urethra, etc. Different systems in the body, acts different but consistent work in relation to the body to a normal existence. Therefore, we should maintain a healthy body, so that the individual organ systems function normally allows us to have a good health.
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