Chapter 2 : Ecology

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Across
  1. 2. Energy lost by egestion
  2. 4. Third layer of the tropical rainforest
  3. 5. Type of tree at emergent layer
  4. 6. One of endangered species
  5. 8. Phase in which natality is equal to mortality
  6. 10. Nitrogen into complex organic molecules
  7. 12. One of effects of unplanned management & development to the ecosystem
  8. 14. Begins when organisms produce nitrogen-containing wastes
  9. 16. Lesser biomass than that of zooplanktons
  10. 19. Lake ecosystem: zone of decomposition
  11. 21. Paramecium sp. population growth
Down
  1. 1. Method of sustainable development
  2. 3. Grow a series of different types of crops on same field in sequential years
  3. 7. One of sustainable fishery
  4. 9. When a piece of sloped plane is cut into platforms
  5. 11. Original source of energy
  6. 13. One of example biogeochemical
  7. 15. One of the affecting factors of population growth
  8. 17. Step in nitrogen cycle
  9. 18. One of the density dependent factor
  10. 20. "on-site" conservation