Chapter 2 - Principles of Ecology

12345678910111213141516171819202122232425
Across
  1. 6. Any nonliving factor in an organism's environment
  2. 7. Scientific study of all the interrelationships between organisms and their environment
  3. 11. Any living factor in an organism's environment
  4. 12. Organism that eats both plants and animals
  5. 15. Biological community and all the nonliving factors that affect it
  6. 16. When both species benefit from each other
  7. 17. Simple model that shows a single path for energy flow through an ecosystem
  8. 18. When one species benefits and the other doesn't get anything from it
  9. 19. Organism that eats plats
  10. 22. Act of one organism feeding on another organism
  11. 23. Relatively thin layer of Earth and its atmosphere that supports life
  12. 24. Physical area in which an organism lives
  13. 25. Role, or position, of an organism in its environment
Down
  1. 1. When one species benefits and the other is harmed
  2. 2. Group of organisms of the same species that occupy the same geographic place at the same time
  3. 3. Each step om a food chain/web
  4. 4. Organism that makes its own food/energy, usually captures energy from sunlight
  5. 5. All interacting populations of different species that live in the same geographic location at the same time
  6. 8. Organism that eats animals
  7. 9. Heterotroph that decomposes organic materials and returns the nutrients back to Earth
  8. 10. Total mass of living matter at each tropic level
  9. 13. Any close relationship between species
  10. 14. Organism that gets its energy from other organisms
  11. 20. Large group of ecosystems that share the same climate and have similar types of communities
  12. 21. Model that shows interconnected food webs and pathways in which energy and matter flow through an ecosystem