Ecology Chapter 55: Population

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Across
  1. 3. total primary production in an ecosystem
  2. 8. percentage of production transferred from one trophic level to the next. Usually around 10%
  3. 9. gradual increase in the concentration of phosphorus, nitrogen, and other plant nutrients in lakes.
  4. 11. The storage of energy through the formation of organic matter from inorganic carbon compounds.
  5. 14. amount of energy that moves along the food chain
  6. 16. shows total biomass of the organisms involved at each trophic level of an ecosystem.
  7. 22. essential to all organisms. Moves by processer of evaporation, transpiration, condensation, precipitation, and movement through surface and ground water.
  8. 23. herbivores, which eat plants and other primary producers.
  9. 24. measure of the total biomass accumulation during given time.
  10. 25. trophic level that supports all others (autotrophs)
  11. 27. organisms that feed on dead organic material (detritus)
  12. 28. using organisms to detoxify polluted ecosystems
  13. 29. element that must be added for production to increase.
  14. 30. using organisms to add essential materials to a degraded ecosystem.
Down
  1. 1. fraction of energy stored in food that is not used for respiration.
  2. 2. matter, like energy, cannot be created or destroyed.
  3. 4. forms framework of organic molecules essential to all organisms. Photosynthetic organisms convert Co2 into organic molecules used by hetertrophs.
  4. 5. carnivores that eat herbivores.
  5. 6. amount of chemical energy in consumers food that's converted into their own new biomass during a given period.
  6. 7. major constituent of nucleic acids, phospholipids, and ATP. Binds with soil particles and movement is often localized.
  7. 10. part of amino acids, proteins, and nucleic acids. Some bacteria carry out dinitrate cation
  8. 12. results in relatively low levels of nutrients in the soil
  9. 13. movement of nutrients and other elements between biotic and abiotic factors
  10. 15. carnivores that eat other carnivores.
  11. 17. energy cannot be created or destroyed, only transferred or transformed.
  12. 18. total amount of water transpired by plants and evaporated from a landscape.
  13. 19. sum of all organisms living in a given area and the abiotic factors with which they interact.
  14. 20. gross primary production minus energy used by primary producers for autotrophic respiration.
  15. 21. limiting factor in primary production
  16. 26. ratio of standing crop biomass to production.