9 Kingdoms

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The human body is made up of over 60 different organs and systems that work together to keep us alive. 1. The circulatory system pumps blood throughout our bodies, supplying oxygen and nutrients to our cells. 2. The nervous system transmits signals between our brain and the rest of our body, allowing us to think, move, and feel sensations. 3. The digestive system breaks down food into energy that we can use, absorbing essential vitamins and minerals in the process. 4. The respiratory system brings oxygen into our bodies and removes carbon dioxide, making it possible for us to breathe. 5. The immune system protects us from harm by fighting off infections and diseases. These systems are all interconnected and work together to maintain our overall health and well-being.