Explanation:
People grow by their bones, cells, and as we grow we get smarter, the more we know about things to avoid. When we are in our mother's stomaches and we are first once one-celled zygote and time grows we become a adult
The lungs are an important part of the respiratory system,lungs allow you to breathe. The lungs are part of the respiratory system and they include airways that carry air in and out of your lungs, blood vessels surrounding the lungs, and the muscles that help you breathe.
