Across
- 4. Organisms that hunt and kill other organisms (prey) for food
- 9. The process of water vapor cooling and returning to a liquid state (clouds)
- 10. Well-suited (to survive in an environment)
- 13. All living things in an environment
- 15. A sequence of feeding relationships that shows the direction of the transfer of energy
- 16. The role or characteristic activity of an organisms in an ecosystem
- 18. A symbiotic relationship in which both organisms benefit
- 19. Organisms that must eat other organism in order to get their energy
- 20. The total mass of living matter in an environment
- 21. that moves off the land into rivers, lakes, and streams
- 22. A symbiotic relationship in which one species benefits and the other is nether harmed nor benefitted
- 23. An interaction between two different organisms living in close proximity to each other that last over time
- 24. Consumers that eat only plants
- 26. A report outlining possible effects of changes to an environment
- 30. The organism that a parasite lives and feeds on
- 31. A method of controlling a pest with its natural predator
- 34. Rain that has high acid concentration – generally strong enough to greatly harm the natural environment
- 37. An organisms that is sensitive enough to show changes in an environment
- 38. An inherited characteristic that helps an organism survive in its environment
- 40. An organism that may be hunted by a predator
- 42. Substances that cause pollution
- 44. study area in an environment
- 46. Resources of nature being renewed at least as quickly as they are being used and wastes being able to break down and be absorbed
- 47. A symbiotic relationship in which organism benefits and the other is harmed
- 49. The total area of land and water needed to supply all of the materials and energy humans use as well as needed to absorb all wastes produced
- 50. The movement of energy in a food chain, which originally comes from the sun and passes from organism to organism
- 51. Organisms that are able to make their own food/energy using energy directly from the sun or other particles (photosynthesis)
- 52. The study of how organisms interact with each other and their environment
Down
- 1. Materials that are found in the environment at levels that are harmful
- 2. of Numbers The number of individual organisms in a food chain needed to transfer enough energy from level to level
- 3. An organism that live on or in another organism (a host) and feeds on it
- 5. Organisms that get their energy from dead or decaying organic matter
- 6. Consumers that eat both plants and animals
- 7. The gradual change and growth of organisms in an area where other organisms were
- 8. The gradual growth of organisms in an area that was previously bare
- 11. Organisms that break down organic matter
- 12. The symbol used to identify the strength of an alkaline or acidic solution
- 13. The build-up of toxins in higher level organisms in the food chain from lower level organisms
- 14. The continuous movement of water in various forms in the environment
- 17. All of the interacting parts of a biological community and its environment
- 25. An organism that was not naturally found in an environment that is now preset
- 27. A method of checking the conditions of an ecosystem by comparing results done at different times
- 28. Materials and products found in nature that we make use of
- 29. The continuous movement of carbon in various forms in the environment
- 32. Consumers that eat only meat
- 33. Information gathered as a starting point for environmental monitoring
- 35. Water that is contained naturally in the Earth’s crust
- 36. A scientist who studies ecology
- 39. A network of interconnected food chains
- 41. The process of water being released into the air as a vapor, by trees
- 43. The place that an organism lives
- 44. The process of water returning to earth from the clouds, in various forms
- 45. The process of liquid water turning into a vapor or gas
- 48. All of the non-living things in an environment