Across
- 1. single cell
- 3. moves easily because they are small
- 4. going out
- 6. plasma membrane
- 8. stores and transfers energy to the cell
- 10. skeletal, lymphatic is an example
- 12. going in
- 15. opposing forces are balanced
- 17. destroys foreign substances
- 19. cell drinking
- 21. sodium and potassium
Down
- 2. multicell
- 5. requires energy
- 7. high to low concentration
- 9. group of 2 or more tissues working together
- 11. that they way the molecules flow
- 13. smallest living unit in any living thing
- 14. moves through protein doorways
- 16. group of similar cells doing a job
- 18. has cellular structure, group of organs
- 20. diffusion of water