ecosystem chapter 1

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Teddy_Brimblecombe
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308386
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ecosystem chapter 1
Updated:
2015-09-23 11:46:03
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ecosystem
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ms day science 2015 ecosystems chapter 1
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  1. Photosynthesis
    • 6CO2+6H2O-->C6H12O6+6O2carbon dioxide+water=glucose+oxygen
    • -can be carried out by plants, algae, and some bacteria
    • -chlorophyll and sunlight are needed-carbon, hydrogen and oxygen bond to make sugar(glucose)
  2. Eutrophication
    • -happens when excess amounts of phosphorus or other nutrients enter a body of water
    • -Eg: fertilizer run-off
  3. Abiotic
    • Liquid part of earths surface(water)
    • -Eg: Lakes, oceans
  4. Biotic
    • -Any living part of an ecosystem-includes recently living organisms-makes up the biosphere
    • -Eg: Animals, fungi, microscoptic organisms
  5. Ecosystem
    • -All the interacting parts of a biological community and that communities environment
    • -some species rely on multiple ecosystems
    • -Eg: Atlantic ocean, Boreal forests
  6. Biosphere
    • -Living parts of earths surface
    • -Is present in the three other spheres
    • -Eg: bacteria, animals,
  7. Atmosphere
    • -Layer of gases above earths surface(air)
    • -Eg: oxygen, nitrogen
  8. Hydrosphere
    • -Liquid part of earths surface(water)
    • -Eg: Lakes, oceans
  9. Lithosphere
    • -Hard part of earths surface(ground)
    • -Eg: rocks, soil
  10. Sustainable Ecosystem
    • -An ecosystem that is capable of withstanding pressure and giving support to a variety of organisms
    • -all organisms require sustainable ecosystems to survive
  11. Nutrients
    • -Nutrients are chemicals that are needed by living organisms to survive essential for life
    • -Eg: water, iron
  12. Tropic level
    • -The general ranking of organisms in a food chain
    • -normally 4 levels:producer, primary consumer, secondary consumer, tertiary consumer
  13. Biomass
    the total mass of organisms in a given area or group
  14. Trophic efficency
    • the amount of energy passed from one trophic level to the next
    • -normally only about 10% gets passed on
  15. Bioaccumulation
    the process where materials, especially toxins, are ingested faster than they are eliminated

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