Question

describe how the respiratory system demonstrates organization from cells to organism. Explain an in-beginner 7th grader's words and in 7 sentences.

Answer 1

The respiratory system shows how the body is organized from tiny cells all the way up to the whole person. Single cells in the lungs, like alveolar cells, let oxygen pass into the blood and remove carbon dioxide. Groups of similar cells form tissues, such as the lining that keeps airways clean and the muscle that helps you breathe. Different tissues join together to make organs like the trachea, lungs, and diaphragm. These organs work as a team in the respiratory system to bring in oxygen and get rid of waste gases. The respiratory system then works with the circulatory system so blood can carry oxygen to every cell in the body. From cells to tissues to organs to organ systems, this organization keeps the whole person alive and full of energy.