Biology ch 3 & 4

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  • Eleanor M. Savko 10/20/11
  • Biology ch 3 & 4

    1. 1. 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt Step 1 Step 2 Step 3 Step 4 Step 5
    2. 2. Branch of biology that deals with interactions among organisms and between organisms and their environment.
    3. 3. What is ecology?
    4. 4. The lowest level of environmental complexity that includes living and non-living factors.
    5. 5. What is ecosystem?
    6. 6. All the members of a particular species living in one area.
    7. 7. What is population?
    8. 8. The simplest grouping of more than one organism in the biosphere.
    9. 9. What is community?
    10. 10. An organism that uses energy to produce its own food supply from inorganic compounds.
    11. 11. What is autotroph?
    12. 12. A bacteria that uses chemicals to produce its food.
    13. 13. What are chemosynthetic bacteria?
    14. 14. Compared to land, open oceans are low in the level of these.
    15. 15. What are nutrients?
    16. 16. The total amount of living tissue within a given trophic level.
    17. 17. What is biomass?
    18. 18. The term for each step in the transfer of energy and matter within a food web.
    19. 19. What is a trophic level?
    20. 20. A snake that eats a rabbit that eats grass is this level on the food chain.
    21. 21. What is a secondary consumer>
    22. 22. The amount of energy that passes to the next trophic level.
    23. 23. What is 10%?
    24. 24. The type of pyramid that shows the amount of living tissue at each trophic level in an ecosystem.
    25. 25. What is a biomass pyramid?
    26. 26. What type of pyramid shows the number of organisms at each trophic level.
    27. 27. What is a pyramid of numbers?
    28. 28. A natural phenomenon that maintains the Earth’s temperature range.
    29. 29. What is the greenhouse effect?
    30. 30. The process by which bacteria convert nitrogen gas in the air to ammonia.
    31. 31. What is nitrogen fixation?
    32. 32. The result of a lake having a large input of limiting nutrients.
    33. 33. What is an algal bloom?
    34. 34. The rate at which organic matter is created by producers in an ecosystem.
    35. 35. What is primary productivity?
    36. 36. The average year-after-year condition of temperature and precipitation in a particular region.
    37. 37. What is climate?
    38. 38. A symbiotic relationship in which both species benefit.
    39. 39. What is mutualism?
    40. 40. The series of predictable changes that occurs in a community over time.
    41. 41. What is ecological succession?
    42. 42. Primary succession can begin after this.
    43. 43. What is volcanic activity?
    44. 44. In the photic zone this can occur.
    45. 45. What is photosynthesis?
    46. 46. This cannot occur in the aphotic zone.
    47. 47. What is photosynthesis?
    48. 48. Depth, flow, temperature, and chemistry.
    49. 49. What are ways aquatic ecosystems are classified?
    50. 50. An ecological inquiry method an ecologist uses when studying populations of a certain species.
    51. 51. What is modeling?

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