Unit A: Ecosystems

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