ecology chapter one

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  1. ecosystem
    all the interacting parts of a biological community and its environment

    self sustaining

  2. sustainable ecosystem
    an ecosystem that us capable of of withstanding pressure and giving support to a variety of organisms

    can survive when something is changed/ removed
  3. biotic
    all living parts of an ecosystem

    anything that is alive or is recently deceased
  4. abiotic
    all the non living parts of an ecosystem

    rocks, soil
  5. lithosphere
    • the hard part of the earths surface
    • stome soil sand
  6. hydrosphere
    • the part of the earth covered in water
    • oceans rivers lakes
  7. atmosphere
    • the layer of gases above of earths surface
    • nitrogen oxygen water vapor
  8. biosphere
    • the living part of the earths surface
    • living stuff
  9. nutrients
    • a chemical that is is essential to living things and is cycled through an ecosystem
    • never lost, just moved.
  10. eutrophication
    • a processes in which nutrient levels in an aquatic ecosystem increase, leading to an increase in the population of the primary producers
    • fertilizer and algae
  11. photosynthesis
    a process that changes solar energy into chemical energy

    carbon dioxide+water- -glucose +oxygen
  12. trophic levels
    • a category of organisms that is defined by how the organisms gain energy
    • plant,bug,bird,bigger bird
    • 1000,100,10,1
  13. biomass
    the total mass of of living organisms in a defined area
  14. trophic efficiency
    • a measure of the amount of energy of biomass transferred from one trophic level to the next higher level
    • how much is passed on on (10%)
  15. bioaccumulation
    a process in which an organism ingests materials, especially toxins, faster than they can eliminate them
  16. bio magnification
    a processes in which the concentration of ingested toxins increases as it moves from one trophic level to the next
  17. cellular respiration
    • a process that releases energy from organic molecules, especially carbohydrates, in the presences of oxygen
    • glucose+oxygen--carbon dioxide+water
  18. fermentation
    • a process that releases energy from organic molecules, especially carbohydrates, in the absence of oxygen
    • methane
  19. greenhouses gasses
    • a gas that prevents heat from leaving the atmosphere increasing the temperature of the planet
    • global warming gases
    • cows
    • cars
  20. green house effect
    • the warming of the earth as a result of green house gases. which traps some of the energy that would otherwise be lost.
    • global warming
  21. acid precipitation
    • rain snow of fog that is of unusual high pH, under5.6 as a result of gases in the atmosphere reacting with water vapor to form acid.
    • bad
    • 3.6-5.6 pH
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ecology chapter one
2015-09-21 23:38:07
ecology,chapter one
ecology chapter one
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