Across
- 7. gives our bodies structure and protects major organs like the heart, lungs, and brain
- 9. made up of more than one cell
- 10. transports oxygen, waste, nutrients, hormones, heat, etc... around the body
- 11. groups of tissues that work together to perform a specific function or related functions
- 12. Allows air to pass to and from lungs; windpipe
- 14. brain, spinal cord, nerves
Down
- 1. brings oxygen into the body and gets rid of carbon dioxide.
- 2. body system the breaks down food and absorbs nutrients
- 3. single-celled organisms like bacteria
- 4. main organs of the respiratory system, where gas exchange takes place
- 5. soft tissue inside the bone that produces blood cells
- 6. enables movement of the body and internal organs
- 8. group of similar cells that perform a particular function
- 13. basic unit of life that all organisms are made of