Biology Unit 8

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Across
  1. 3. A relationship between two organisms in which one organism benefits and the other is unaffected
  2. 4. All the living organisms that inhabit an environment
  3. 6. Place where an organism lives
  4. 8. All the different populations that live together in an area
  5. 10. physical, or nonliving, factor that shapes an ecosystem
  6. 11. organism that feeds on plant and animal remains and other dead matter
  7. 12. part of Earth in which life exists including land, water, and air or atmosphere
  8. 15. An organism that cannot make its own food.
  9. 16. A group of ecosystems that share similar climates and typical organisms
  10. 17. A community of organisms where there are several interrelated food chains
  11. 19. A consumer that eats only animals.
  12. 20. A series of steps in which organisms transfer energy by eating and being eaten
Down
  1. 1. total amount of living tissue within a given trophic level
  2. 2. diagram that shows the relative amounts of energy or matter within each trophic level in a food chain or food web
  3. 5. Ecological rule that states that no two species can occupy the same exact niche in the same habitat at the same time
  4. 7. An organism that makes its own food
  5. 9. A biological community of interacting organisms and their physical environment.
  6. 13. A consumer that eats only plants.
  7. 14. An organism that breaks down wastes and dead organisms
  8. 18. Scientific study of interactions among organisms and between organisms and their environment