Biosphere Crossword

123456789101112131415161718192021222324252627282930
Across
  1. 2. living together of two dissimilar organisms
  2. 5. an abundant accumulation of nutrients that supports organisms
  3. 9. a hardy species first to colonize
  4. 11. substance obtained from another substance through change
  5. 12. maximum number of organisms of a particular species
  6. 14. a natural environment of an organism
  7. 16. an organism requiring organic compounds for food
  8. 18. a complex biotic community characterized by distinct animal or plant species
  9. 20. inhalation and exhalation of air
  10. 24. a relationship between 2 species living without damage
  11. 25. pertaining to life
  12. 27. a substance that takes part in and changes during a reaction
  13. 29. the coming of one person or thing after another
  14. 30. a system of interconnected elements formed by interactions
Down
  1. 1. a social group with common cultural heritage
  2. 2. class of individuals having common characteristics
  3. 3. the process by which plants create food
  4. 4. an environmental factor that limits population
  5. 6. predatory behavior
  6. 7. a relationship between organisms where on lives as a parasite
  7. 8. place appropriate for a person or thing
  8. 10. eating both plants and animals
  9. 13. a form modified to fit a changed environment
  10. 15. an animal that feeds on dead organic matter
  11. 17. an animal that feeds on plants
  12. 19. the ecosystem compromising the entire earth
  13. 21. inhabitants of a place
  14. 22. an animal that eats flesh
  15. 23. an organism that forms nutrition from simple inorganic substances
  16. 26. a beneficial relationship between two species
  17. 28. the absence of life of living organisms