Across
- 2. They make up everything.
- 4. The tempreture stimulus.
- 6. The study of matter and its changes.
- 8. The main type of sugar in the blood.
- 9. The largest geographically based biotic community.
- 10. The name of the super continent.
- 12. Max amount of electrons in the most inner electron shell.
- 13. Changes in the body to fit a location.
Down
- 1. The second step in the scientific method.
- 3. Has a positive charge and is apart of the nuclus.
- 5. The messenger system in the body.
- 7. Purest form of matter.
- 11. When one organism gains and the other organism loses.