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Class 12b: The biosphere

Class 12b: The biosphere. Biosphere. Biogeography : Ecology :. Ecosystems. Ecosystems : Abiotic Biotic. Ecosystems. Different environmental factors at different scales Limiting factor :. Limiting factors. Ecosystem components. Community : Habitat :. Ecosystem components. Niche :.

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Class 12b: The biosphere

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  1. Class 12b: The biosphere

  2. Biosphere • Biogeography: • Ecology:

  3. Ecosystems • Ecosystems: • Abiotic • Biotic

  4. Ecosystems • Different environmental factors at different scales • Limiting factor:

  5. Limiting factors

  6. Ecosystem components • Community: • Habitat:

  7. Ecosystem components • Niche:

  8. Biogeochemical cycles

  9. Photosynthesis

  10. Respiration

  11. Productivity • Net primary productivity:

  12. Food chains and pyramids

  13. Carbon cycle

  14. Nitrogen cycle

  15. Ecosystem stability

  16. Ecosystem stability

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