Unit 9

12345678910111213141516171819202122232425
Across
  1. 4. open water above the ocean floor
  2. 7. first species to inhabit an area
  3. 9. pockets ecosystems at the bottom of the ocean
  4. 11. non-native species in a community
  5. 12. harmful materials in the environment, often by humans
  6. 13. Collection of ecosystems characterized with similar temperatures, rainfall totals, climax communities
  7. 18. long term changes in temp- human interactions
  8. 19. predictable changes in an ecosystem as it progresses- starts w/ no soil
  9. 20. No 2 species can occupy the same niche in an ecosystem, one outcompetes the other
  10. 21. a biome with acidic soil
  11. 23. aquatic regions where sunlight penetrates, can support photosynthesis
  12. 24. a mature from of an ecosystem
  13. 25. measurement of the variety and richness of an ecosystem
Down
  1. 1. humans become so large they aren't supported by ecosystem
  2. 2. A gently sloping, shallow area of the ocean floor that extends outward from the edge of a continent
  3. 3. key organisms in an ecosystem that help stabilize or maintain the ecosystem
  4. 5. clearing forested land and repurposing it for non-forest use
  5. 6. predictable changes in an ecosystem after a disturbance
  6. 8. Portion of the shoreline that lies between the high and low tide lines
  7. 10. high rainfall, not rich soils
  8. 14. species that evolve/change and are only found in one isolated place
  9. 15. created from mutualistic relationship
  10. 16. shows interconnections between species
  11. 17. water ecosystems, coral reefs, aphotic and photic zone, etc
  12. 22. An extremely cold, dry biome.