Chapter 4 Vocab

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Across
  1. 4. when two species live close together
  2. 5. Hot or cold
  3. 7. species both benefit
  4. 8. effect trapping heat
  5. 9. when water covers the soil
  6. 12. dense,leafy coverings
  7. 14. exclusion principle no two species can occupy the same nich in the same habitat
  8. 15. zone photosynthesis cant occur
  9. 16. boreal forest
  10. 17. temperature, rain, and other extreme conditions
  11. 19. when organisms live near the bottom of lakes,streams, or oceans
  12. 20. when herbivors feed on plants
Down
  1. 1. where an organism lives
  2. 2. ability to survive under enviromental circumstances
  3. 3. what we need in life
  4. 6. zone sunlit region near the surface in which photosynthesis in which photosynyhesis can occur
  5. 7. climatic condition in a relatively small area
  6. 10. species single species
  7. 11. when a predator feeds on its prey
  8. 13. what an organism does and how it interacts
  9. 18. special kind of wetland