Across
- 2. this type of tissue is a protective barrier
- 5. this type of tissue provides structural support
- 7. bacteria is this type of cell
- 10. this system works to bring oxygen into the body and remove carbon dioxide
- 11. this is the smallest level of organization in living things
Down
- 1. this type of tissue transmits electric signal
- 3. a process in which organisms strive for internal stability
- 4. this is the highest level of organization in living things
- 6. plants and animals are this type of cell
- 8. the heart is an example of this
- 9. this type of tissue helps with movement