Ecology Crossword Puzzle

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Across
  1. 5. eats primary consumers
  2. 7. uses energy from the sun to create food
  3. 11. an organism, especially a soil bacterium, fungus, or invertebrate, that breaks down organic material
  4. 15. the maximum amount of a population that an ecosystem can support
  5. 18. anything that constrains a population's size and slows or stops it from growing
  6. 19. eats producers
  7. 20. atmospheric gases that help trap heat in
  8. 21. both organisms benefit
  9. 23. the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects
  10. 24. threat to biodiversity in which animals lose access to vital resources
  11. 25. living thing that
Down
  1. 1. one organism benefits, the other is neither helped nor harmed
  2. 2. introduced species to an environment that becomes overpopulated and harms its new environment
  3. 3. illustrates connections between organisms in an ecosystem
  4. 4. living
  5. 6. threat to biodiversity in which the amount of humans begins to affect the biodiversity of certain areas
  6. 8. taking resources faster than an environment can replenish
  7. 9. relationship between two organisms
  8. 10. eats secondary consumers, can also be called an apex predator
  9. 12. biotic and abiotic factors working together in a certain area
  10. 13. the variety of living things in a given area
  11. 14. one organism benefits while one organism is harmed
  12. 16. a change or the process of change by which an organism or species becomes better suited to its environment
  13. 17. large area of the world categorized by location, climate, biotic factors, and other abiotic factors
  14. 22. non-living