unit 8 biology

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