1. tissues
2. Lungs
3. organs system
what is there function?
--------------------------------
1. tissues form a framework and support for organs and the body
2. The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.
3. used to define a group of organs that work together to perform bodily functions
