Chapter 13-Ecology

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Across
  1. 2. / ecology in Greek
  2. 7. / a kind of observation where scientists predict outcomes based on known features and data
  3. 13. / organisms that eat both plants and animals
  4. 14. / first trophic level
  5. 16. consumers / fourth trophic level
  6. 17. / factors that are living things
  7. 19. / another name for consumers
  8. 26. cycle / circular pathway of water on Earth from the atmosphere to the surface, below ground, and back
  9. 27. / type of tertiary consumer
  10. 29. / organisms that eat only animals
  11. 32. / measure of the total dry mass of organisms in a given area
  12. 33. / returning nitrogen to the soil as ammonnium
  13. 36. consumers / third trophic level
  14. 37. / process by which an organisms forms carbohydrates using chemicals rather than light
  15. 39. consumers / second trophic level
  16. 40. cycle / flow of oxygen throught the environment
  17. 42. experiments / can be controlled in an indoor environment
  18. 43. / another name for producers
  19. 44. / organisms that get their energy by eating living or once living organisms
  20. 46. / major regional or global community of organisms
  21. 47. pyramid / compares number of all trophic levels
Down
  1. 1. web / model that shows the complex network of feeding relationships and the flow of energy within and beyond an ecosystem
  2. 3. / the study of something
  3. 4. cycle / flow of carbon throught the environment
  4. 5. species / a species that has an unusually large effect on its ecosystem
  5. 6. / is the study of the interactions among living things, and between living things and their surroundings.
  6. 8. / includes all organisms as well as the climate, soil, water, and rocks
  7. 9. chain / sequence that links specific feeding relationships
  8. 10. / organisms that eat only plants
  9. 11. / organisms that eat dead organic matter
  10. 12. sampling / way to measure non moving organisms and their population
  11. 14. cycle / breakdown of phosphorus through the environment
  12. 15. experiments / can be performed where the organisms lives
  13. 18. levels / levels of nourishment in a food chain
  14. 20. / a way for scientists to find more information about certain environments
  15. 21. / a type of producer
  16. 22. / detrivores that break down organic matter into simpler compounds
  17. 23. / a group of different species that live together in one area, such as groups of alligators and turtles
  18. 24. / a type of primary consumer
  19. 25. cycle / movement of a particular chemical through the biological and geological or living and nonliving parts of an ecosystem
  20. 28. / factors that are not living
  21. 30. telemetry / one way of studying activities of species
  22. 31. / assortment or variety of living things in an ecosystem
  23. 34. and recapture / way to measure moving organisms and their population
  24. 35. / consumers that have a varying diet
  25. 38. / consumer that primarily eats one specific organism
  26. 41. fixation / converting nitrogen in the form of gas into ammonia
  27. 45. pyramid / diagram that compares energy used by procuers, primary consumers, and other trophic level