Chapter 1 Glossary Terms

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Chapter 1 Glossary Terms
2014-05-27 18:06:52
Chapter Glossary Terms

Chapter 1 Glossary Terms
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  1. Ecosystem Definition
    all the interacting parts of a biological community and its environment
  2. Sustainable ecosystem Definition
    an ecosystem that is capable of withstanding pressure and giving support to  variety of orgnisms
  3. Biotic Definition
    the living parts of an ecosystem E.g Plants and animals
  4. Lithosphere Definition
    the hard part of Earths's surface
  5. Hydrosphere Definition
    all the water found on Earth, including lakes, oceans, and ground water
  6. Atmosphere Definition
    the layer of gases above Earth's surface
  7. Biosphere Definition
    the regions of Earth where living organisms exist
  8. Abiotic Definition
    the non-living parts of an ecosystem e.g rocks, water and oxygen
  9. Nutrients Definition
    a chemical that is essential to living things and is cycled through ecosystems
  10. Eutrophication Definition
    a process in which nutrient levels in aquatic ecosystems increase in the populations of primary producers
  11. Photosynthesis Definition
    a process that changes solar energy into chemical energy
  12. Trophic Level Definition
    a category of organisms that is defined by how the organisms gain their energy
  13. Trophic Efficiency Definition
    a measure of the amount of energy or biomass transferred from one trophic level to the next higher trophic level
  14. Biomass Definition
    the total mass of living organisms in a defined group or area
  15. Bioaccumulation Definition
    a process in which an organism ingests materials, especially toxins, faster than it eliminates them
  16. Biomagnification Definition
    a process in which the concentration of ingested toxins increases as it moves from one trophic level to the next
  17. Cellular Respiration Definition
    a process that releases energy from organic molecules, especially carbohydrates, in the presence of oxygen
  18. Fermentation Definition
    a process that releases energy from organic molecules, especially carbohydrates, in the absence of oxygen
  19. Greenhouse gases Definition
    an atmospheric gas that prevents heat from leaving the atmosphere, thus increasing the temperature of the atmosphere
  20. Greenhouse Effect Definition
    the warming of Earth as a result of greenhouse gases, which trap some of the energy that would otherwise leave earth
  21. Acid precipitation Definition
    rain, snow or fog that is unnaturally acidic due to gases in the atmosphere that react with water to form acid