Science chapter 1 flash cards

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Science chapter 1 flash cards
2014-09-17 17:16:12

The flashcards for the first chapter of science
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  1. Ecosystem
    Ecosystem:all the interacting parts of a biological community and its enviroment.
  2. Sustainable enviroment
    An ecosystem that is capable of withstanding pressure and giving support to a variety of organisms.
  3. Biotic
    • The living parts of an organism
    • e.g. a tree,deer or rabbit
  4. Abiotic
    • The non-living parts of an ecosystem
    • e.g. river rock or pond
  5. Lithosphere
    The hard part of the earths surface.
  6. Hydrosphere
    All the money on earth including lakes.rivers,oceans....
  7. Atmosphere
    The layer of gases above earths surface.
  8. Biosphere
    The regions of earth where organisms exist
  9. Nutrients
    • A chemical that is essential to living things and is cycled through ecosystems.
    • e.g. O2
  10. Eutrophication
    When nutrients in aquatic are increased,which increases the the population of primary producers.
  11. Photosynthesis
    When sunlight energy is changed into chemical energy.
  12. Trophic Level
    • A category of animals that is defined by how they get their energy
    • e.g. grass is in the first trophic level.
  13. Biomass
    The total mass of living organisms in a certain area or grop
  14. Trophic efficiency
    The measure of ow much energy is transferred from one trophic level to the next higher level.
  15. Bioaccumulation
    When a organism ingest a material (toxins) faster than they than it eliminates them.
  16. Biomagnification
    when toxins consumed by one trophic level move to the next trophic level.
  17. Cellular respiration
    A process when objects release energy from organic molecules (carbohydrates) in the presence of oxygen.
  18. Fermentation
    A process when objects release energy from organic molecules (carbohydrates) without oxygen.
  19. Greenhouse gases
    A gas prevents heat from leaving the atmosphere , in turn increasing the atmospheres temperature.
  20. Greenhouse effect
    The warming of earth because of the Greenhouse gases.
  21. Acid precipitation
    Any precipitation that has a pH level lower than 5.6 caused by acidic gases mixing with water