Chapter 1 Que cards

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Chapter 1 Que cards
2013-09-17 17:48:20
science terms

science cards
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  1. Ecosystem:
    All the interacting parts of a biological community and its 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. aboitic
    the non-living parts of an ecosystem

  5. lithosphere
    the hard part of the earth's surface

  6. hydrosphere
    all the water found on earth, including lakes, oceans, and ground water

  7. atmosphere
    the layer of gases 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 in which nutrient levels in aquatic ecosystems increase, leading to an increase in the populations of primary producers
  11. photosynthesis
    • a process that changes solar energy into chemical energy
    •                       light energy
    • 6 CO2 + 6 H2O -------------> C6 H12 O6 + 6 O2
  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 of the amount of energy or biomass transferred from one trophic level to the next higher trophic 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 trophic 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 energy, that would otherwise leave earth

  21. acid precipitation
    rain, snow, or fog that is unnaturally acidic, due to gases in the atmosphere that react with water to form acids