Biology Unit 9

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Across
  1. 2. Mature form of an ecosystem, end result of biological succession
  2. 3. Pockets ecosystems at the bottom of the ocean near
  3. 5. Biomes where freshwater and saltwater meet
  4. 6. Predictable changes in an ecosystem as it progresses toward reestablishing a mature climax community
  5. 9. Key organisms in an ecosystem
  6. 10. When human populations become so large they are not able to be supported by ecosystems
  7. 13. Land ecosystems characterized by average temperature and precipitation
  8. 14. Aquatic regions where sunlight penetrates
  9. 16. Species that evolve and are only found in one isolated geographic location
  10. 17. Created from a mutualistic symbiotic relationship between a plant and a fungus
  11. 18. Long term changes in average global temperatures
  12. 19. Visual representation of the feeding interactions in an ecosystem
  13. 20. Measurement of the variety and richness of an ecosystem
Down
  1. 1. First species to invade or populate an area
  2. 4. Predictable changes in an ecosystem after a disturbance
  3. 7. Non-native species in an environment
  4. 8. Clearing forested land and repurposing it for non-forest use
  5. 11. The introduction of harmful materials into the environment
  6. 12. Collection of ecosystems with smililar characteristics
  7. 15. Aquatic regions that do not have sunlight