| Across |
| 2. |
study of interactions between organisms and the environment |
| 3. |
lands with water and above water plants |
| 6. |
upper part of water with light penetration |
| 7. |
species that originated or evolved in an area |
| 9. |
nonliving parts of the environment |
| 10. |
lower region of water with no light |
| 11. |
small ecosystems or environmental conditions |
| 14. |
nutrient rich, shallow and warm lake |
| 15. |
distribution of species |
| 16. |
daily conditions in the environment |
| 17. |
large ecosystems with similar climates |
| 18. |
living organisms |
| 19. |
average weather conditions for a period of time |
