Across
- 2. group of organs that work together to do a job
- 5. transport of blood throughout the body
- 7. blood vessels that carry oxygen rich blood
- 8. body part that is made of different kinds of tissues
- 9. largest organ in the body
- 10. process of changing food in your body
- 11. group of cells that work together to do a job
Down
- 1. exchange of gases withi the body
- 3. mineral that helps to keep bones strong
- 4. main organ of the respiratory system
- 5. waste gas produced by the body during breathing
- 6. smallest living part of a person's body