Environmental Bio Crossword

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Across
  1. 7. the variety of life on earth at all levels
  2. 9. a branch of biology which deals with organisms and their environment
  3. 11. a substance that when present in large concentrations can harm organisms
  4. 16. The physical regions of a surface atmosphere or hydrosphere
  5. 17. factor a living factor in an environment
  6. 18. several communities of organisms and their environment
  7. 21. a group of 2 or more populations in an area
  8. 22. the quality of not being harmful to the environment
  9. 25. an organism that eats other organisms for food
Down
  1. 1. species a species that has no competition in its environment allowing for exponential growth
  2. 2. an integration between 2 organisms in which both benefit
  3. 3. an organism that can make its own glucose
  4. 4. the study of the conservation or earths biosphere
  5. 5. an organism that decomposes organic material
  6. 6. chains the sequence of transfer of energy in the environment
  7. 8. information collected during an experiment
  8. 10. an organism that eats plants and animals
  9. 12. an organism that is able to reproduce
  10. 13. an educated guess
  11. 14. factor a nonliving factor in an environment
  12. 15. a group of organisms in an area
  13. 19. an organism that only eats animals
  14. 20. an organism that only eats plants
  15. 23. collection of gases surrounding a planet
  16. 24. an animal that is hunted and killed for food