Across
- 3. these are not considered "bones" at all because they can not regenerate
- 7. the ability of an organism to change due to stresses in the environment
- 9. a bond in which elements share electrons
- 11. when one plate dives beneath another
- 13. the longest bone in the human body
- 16. an error in the genetic code
- 18. a bond inoppositelyositily charged elements are attracted to each other
- 19. must use a host to reproduce, not living
- 21. this plate is nicknamed the "ring of fire"
- 22. the San Andreas fault is an example of this type of plate boundary
- 23. exchange O2 for CO2
- 24. the passageway for food from the mouth to the stomach
- 25. the element of life
- 26. the spot in the crust where an earthquake begins
- 27. the largest organ of the human body
Down
- 1. all scientific experiments begin with these
- 2. the study of life
- 4. a catastrophic life-altering event
- 5. the earliest living organisms on the planet
- 6. the muscles of the chest
- 8. a hypothesis that has yet to be disproven
- 10. change in an organism over time
- 11. when two organisms are living together
- 12. genetic material
- 14. all of the non-living matter in an ecosystem
- 15. a large ecosystem characterized by its temperature and rainfall
- 17. the name of the bones for both our fingers and our toes
- 20. the type of volcano Hawaii is built upon
- 21. the fastest ground vibrations immediately following an earthquake
- 25. the simplest of living organisms