Ecology- Chapter 1

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Ecology- Chapter 1
2014-05-27 16:02:41

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  1. Ecosystem
    All the interacting parts of a biological community and it's environment
  2. Sustainable ecosystem
    An ecosystem that is capable of withstanding pressure and giving support to a variety of organisms
  3. Biotic
    The living parts of an ecosystem
  4. Abiotic
    The non living part of an ecosystem
  5. Lithosphere
    The hard part of earths surface
  6. Hydrosphere
    All water found on earth including ground water
  7. Atmosphere
    The layer if gasses above earths surface
  8. Biosphere
    The regions of earth where living organisms exist
  9. Nutrients
    A chemical that is essential to living things and is cycled through ecosystems
  10. Eutrophication
    A process I which nutrient levels in an aquatic ecosystem increase, leading to an increase in the population of primary producers
  11. Photosynthesis
    A process that changes solar energy into chemical energy
  12. Trophic level
    A category of organisms that is defined by how the organisms gain their energy
  13. Biomass
    The total mass of living organisms in a defined group or area
  14. Trophic efficiency
    A measure if the amount of energy or biomass transferred from one tropic level to he next higher level
  15. Bioaccumulation
    A process in which an organism ingests materials especially toxins faster than it eliminates them
  16. Biomagnification
    A process in which the concentration of ingested toxins increases as it moves from one tropic level to the next
  17. Cellular respiration
    a process that releases energy from organic molecules especially carbohydrates in the presence of oxygen
  18. Fermentation
    A process that releases energy from organic molecules, especially carbohydrates, in the absence of oxygen
  19. Greenhouse gases
    An atmospheric gas that prevents heat from leaving the atmosphere thus increasing the temperature of the atmosphere
  20. Greenhouse effect
    The warming of earth as a result of greenhouse gases, which trap some of the energy that would otherwise leave earth