Ecology Vocab Exam Review

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Across
  1. 2. In a/n ___ curve, the population is growing without limit.
  2. 5. Bacteria convert ammonia into nitrogen gas.
  3. 6. The process of liquid water being turned into gaseous water.
  4. 8. The form water takes when it falls to the earth.
  5. 12. The process plants use to take carbon dioxide from the atmosphere and use it to make glucose.
  6. 15. An organism that relies on other organisms for food.
  7. 16. A community and all the abiotic factors within that community.
  8. 18. Multiple organisms of the same species living in the same area.
  9. 20. A diagram that represents the spatial distribution of organisms in a population is known as population ___.
  10. 22. A species that is critical for the survival of other species within an ecosystem.
  11. 23. In ___ reproduction, there is only one parent and the offspring are genetically identical to the parent.
  12. 25. An organism that can make its own food.
  13. 27. The nonliving parts of an organism's environment is known as ____ factors.
  14. 30. Bacteria convert ammonia into nitrates.
  15. 33. ___ factors are the living parts of an organism's environment.
  16. 34. Living organisms use cellular ____ to break down glucose into carbon dioxide and water.
  17. 37. The sum of all the chemical reactions in an organism.
  18. 38. The number of individual organisms that live in a defined space is known as the population ___.
  19. 40. Carbon from once-living organisms is converted into fossil fuels through intense heat and compression.
  20. 45. Gaseous water turning into liquid water, such as water vapor turning into clouds.
  21. 46. Water vapor released from plants.
  22. 47. The theoretical maximum population that a given environment can support is called the carrying ___.
  23. 50. Many populations of different species living in the same area.
  24. 51. The competitive ___ principle states that no two organisms can occupy the same niche at the same time.
  25. 53. A type of relationship in which both organisms benefit.
  26. 55. The variety of organisms living together within an area.
  27. 56. A mature and stable community is known as a/n ___ community.
  28. 57. ___ factors are any aspects of the environment that limit the size a population can reach.
  29. 58. A type of relationship in which one species benefits and the other species is unaffected.
  30. 59. A chemical compound used by the body to function and grow.
Down
  1. 1. Density ___ limiting factors affect all species within an ecosystem regardless of population size.
  2. 3. An individual member of a population.
  3. 4. The water cycle, nitrogen cycle, and carbon cycle are all examples of ___ cycles.
  4. 7. Ecological ___ is the process of one community replacing another within an ecosystem.
  5. 9. Density ___ limiting factors have a bigger impact when population size is increased.
  6. 10. An underground layer of rock that hold water.
  7. 11. A ____ key can be used to identify organisms.
  8. 13. Succession that takes place in an area that was previously occupied by living organisms.
  9. 14. Bacteria convert nitrogen from waste into ammonia.
  10. 16. The scientific study of interactions among organisms with each other and their environment.
  11. 17. A graph that shows three types of mortality patterns is known as a ___ curve.
  12. 19. Multiple ecosystems with similar characteristics that might be located in different areas.
  13. 21. Excessive algae growth due to excess nutrients and nitrogen.
  14. 24. A relationship between organisms in which one organism kills and eats another organism.
  15. 26. The first species to grow in a new environment.
  16. 28. The type of competition that occurs between different species.
  17. 29. A type of relationship in which one species benefits and another species is harmed.
  18. 31. Bacteria in the soil can use the process of nitrogen ___ to convert nitrogen in the air into usable nitrogen for plants.
  19. 32. In a/n ___ curve, the population grows quickly and then levels off.
  20. 35. The process of breaking down dead organisms.
  21. 36. The water cycle is driven by the ___.
  22. 39. The area in the ecosystem where an organism lives, including all abiotic and biotic factors.
  23. 41. The process of water being absorbed underground.
  24. 42. Succession that takes place in an area that is a brand new ecosystem with no soil present.
  25. 43. The organism killed and consumed by a predator.
  26. 44. A carbon-containing compound. Comes from living organisms.
  27. 48. A relationship between organisms that are fighting for the same resources.
  28. 49. The process of burning an organic substance and releasing carbon dioxide into the air.
  29. 52. Any change in an organism's environment.
  30. 54. All the things an organism needs and does within its habitat.