Traffic light 2

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The human body is made up of approximately 60 trillion cells that work together to form tissues, organs, and systems. Each cell performs a unique function, such as muscle contraction or nerve transmission, while also contributing to overall bodily functions like digestion, circulation, and waste removal. The brain, which is the control center of the body, sends signals through the nervous system to muscles and glands to produce movement, regulate hormones, and perform other essential tasks. In addition to these basic functions, humans have a highly developed sense of awareness and cognitive abilities that enable them to think, learn, and adapt to their environment.