| Across |
| 1. | zone that extends over the continental shelf |
| 5. | large land mass formed 225 million years ago |
| 7. | group of land ecosystems with similar climate and organisms |
| 9. | made of many overlapping food chains |
| 11. | carnivore that eats bodies of dead organisms |
| 13. | examples of these are clover, beans, peas and alfalfa |
| 15. | movement of organism from one place to another |
| 18. | organism that can make their own food through photosynthesis |
| 20. | animal that eats only plants |
| 22. | food chains show the movement of _____ though the ecosystem |
| 25. | organism that has to obtain energy by feeding on other organisms |
| 26. | examples of rain, snow, sleet, hail |
| 28. | only ___ %of the energy is passed on to each level |
| 29. | the bacteria and legumes have this type of relationship |
| 35. | changing free nitrogen into a usable form of nitrogen |
| 37. | organisms that break down wastes and return raw materials to the ecosystem |
| 38. | series of events in which one organism date another and obtains energy |
| 39. | the leafy roof formed by tall trees |
| 40. | zone that exists between high and low tides |
| 41. | organism that is carried into a new location by people |
| 42. | a limit to dispersal |
| 43. | organisms that eat both producers and consumers |
| 45. | water, mountains, deserts are examples of these barriers |