Megapolis "Mexico" H-0885-А-BN

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The human body is a complex machine made up of many different systems that work together to keep it alive and functioning properly. The circulatory system, which includes the heart, blood vessels, and blood, is responsible for transporting oxygen and nutrients to all parts of the body. The nervous system, which consists of the brain, spinal cord, and nerves, controls all voluntary movements and transmits signals throughout the body. The digestive system, which includes the mouth, esophagus, stomach, small intestine, and large intestine, breaks down food into its component parts so that the body can absorb the nutrients it needs to survive.