Across
- 3. kingdom
- 6. role
- 8. four
- 11. sleep
- 12. nucleus
- 13. Amoeba
- 16. shark and pilot fish
- 17. two
- 18. oxpecker and elephant
- 19. saltwater
- 20. plants
Down
- 1. fungi
- 2. location
- 4. moving
- 5. powerhouse
- 7. land
- 9. living
- 10. tick and dogs
- 14. nonliving
- 15. animals