Ecology Chapter 13

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Across
  1. 4. The _______ cycle is the movement of a particular chemical moving through the ecosystem
  2. 6. This is the ______ cycle
  3. 7. A diagram that compares the biomass of different trophic levels within an ecosystem
  4. 8. Someone that studies ecology
  5. 9. This type of diagram describes how available energy is distributed among trophic levels in an ecosystem
  6. 10. ______ factors are living things
  7. 12. The mass of a biomass pyramid is given in _________
  8. 14. The variety of living things in an ecosystem
  9. 16. Another name for autotrophs
  10. 18. ________ is the building block of life
  11. 21. _________ survey is when an organism watched using the naked eye or with tools such as binoculars
  12. 23. Organisms that make their own energy out of nonliving things
  13. 25. ______ consumers are herbivores because they are above the producers in the trophic level
  14. 26. Organisms that eat both plants and organisms
  15. 30. A _______ species has a large impact on the ecosystem
  16. 33. A method used by scientist to estimate the population of mobile animals
  17. 37. _________ survey is when scientists look for the trace of an organism
  18. 38. Bacteria engage in _______ in order to make nitrogen available for plants to use
  19. 39. this is the ____ cycle
  20. 40. The _______ cycle does not partake in the atmosphere
  21. 42. Made of all the abiotic and biotic factors of a given area
  22. 44. Most producers, especially those that photosynthesize, depend on the ____ for their energy
  23. 45. Organisms that only eat plants
  24. 46. This process releases water from plants
  25. 47. ________ consumers are carnivores that eat the herbivores
Down
  1. 1. _____ is the unit of measurement used to describe the amount of energy at each trophic level in the energy pyramid
  2. 2. A two stage process in which green plants use to produce their energy
  3. 3. Organisms that only eat animals
  4. 5. _______ factors are nonliving things that determine the survival of living things
  5. 11. This is the ____________
  6. 13. The _________ shows the numbers of individual organisms at each trophic level in an ecosystem
  7. 15. An individual living thing
  8. 17. Tiny prokaryotes use this process to make their own carbohydrates out of chemicals
  9. 19. A measure of the total dry mass of organisms in a given area
  10. 20. Characterized by the climate and the organisms that live there
  11. 22. Another name for heterotrophs
  12. 24. Organisms that get their energy by consuming living or once living organisms
  13. 27. A method used to estimate the population of plants
  14. 28. _______ consumers are carnivores that eat secondary carnivores
  15. 29. Organisms that only eat dead, organic matter
  16. 31. The study of the interactions among living things and their surrounding
  17. 32. A type of organism that only eats a certain type of species or a very few amount of species
  18. 34. These are levels of nourishment in a food chain
  19. 35. The _______ cycle occurs mostly underground
  20. 36. A consumer that has a varying diet
  21. 41. All organisms need _______ to survive, however, they may obtain it differently
  22. 43. The ______ cycle is another name for the hydrologic cycle