| Across |
|---|
| 3. | Both organisms benefit. Positive and Positive |
| 4. | One organism benefits from harming the other. Positive and Negative |
| 5. | The most abundant molecule in the human body. |
| 7. | Gradual overall increase in the temperature of the earth's atmosphere. (2 Words) |
| 11. | All regions of the earth inhabited by living organisms. |
| 12. | Hypothetical super-continent believed to exist before the current landmasses moved to where they are presently |
| 13. | The theory that states that mitochondria and chloroplasts were eaten by a bigger cell. |
| 16. | Often caused by lack of food˛ water˛ or territory. When the fitness of one challenges the fitness of another |
| 18. | Parts from ancestors that we still have that don't have a purpose anymore (Wisdom teeth). (2 Words) |
| 22. | The Lorax. When an individual acts only for their own person interest in a shared resource system. (4 Words) |
| 24. | Same structure˛ different function. (2 Words) |
| 26. | Change in an organism over time. |
| 27. | An organism's place in the ecosystem. |
| 28. | Makes up the shell of lobster and the wall of fungi. |
| 29. | One step broader than Kingdom. |
