Card Set Information

2012-09-19 16:56:43

Show Answers:

  1. Biotic
    The living parts of an ecosystem
  2. Abiotic
    The non-living parts of an ecosystem
  3. Lithosphere
    The hard part of Earth's surface.
  4. Hydrosphere
    • All the water found on Earth.
    • Including; Lakes, oceans, and ground water.
  5. Atmosphere
    Layer of gases above Earth's surface
  6. Biosphere
    The regions of Earth where living organisms exist
  7. Nutrients
    A chemical that is essential to living thinkgs and is cycled through ecosytems
  8. Eutrophication
    A process in which nutrient levels in aquatic ecosystems increase, leading to an increase in the populations of primary producers
  9. Photosynthesis
    A process that changes solar energy into chemical energy
  10. Trophic level
    A category of organisms that is defined by how the organisms gain their energy
  11. Biomass
    The total mass of living organisms in a defined group or area
  12. Tropic efficiency
    The measure of the amount of energy or biomass transferred from one trophic level to the next higher trophic level
  13. Bioaccumulation
    A process in which an organism ingests material, especially toxins, faster than it eliminates them
  14. Biomagnification
    A process in which the concentration of ingested toxins increases as it moves from one trophic level to the next
  15. Cellular respiration
    A process that releases energy from organic molecules, especially carbohydrates, in the presence of oxygen
  16. Fermentation
    A process that releases energy from organic molecules, especially carbohydrates, in the absence of oxygen
  17. Greenhouse gases
    An atmospheric gas that prevents heat from leaving the atomsphere, thus increasing the temperature of the atmosphere
  18. Greenhouse effect
    The warming of the Earth as a result of greenhouse gases, which trap some of the energy that would otherwise leave Earth
  19. Acid precipitation
    Rain, snow, or fog that is unnaturally acidic [pH less than 5.6] due to gases in the atmosphere that react with water to form acid