unit 8

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Across
  1. 2. group of organisms similar enough to interbreed and create fertile offspring
  2. 5. a collection of all the food chains in an environment
  3. 6. group of ecosystems with similar climates and communities
  4. 7. symbiosis where one organism benefits and the other is harmed
  5. 10. feeding relationship where one organism captures and feeds on another
  6. 12. organism that eats plants and animals for energy
  7. 14. a collection of all the ecosystems and biomes on earth
  8. 16. relies on other organisms for energy
  9. 19. all the individuals in a species in the same place
  10. 20. organisms that break down biotic things and turns them into abiotic things
  11. 21. symbiosis when both organisms benefit
Down
  1. 1. organisms that only eat plants for energy
  2. 3. shows relative amounts of biomass, energy, individuals in trophic levels
  3. 4. any relationship between two organisms that live closely with each other
  4. 8. makes its own energy from its environment
  5. 9. a single step or stage in a food chain or ecological pyrimid
  6. 11. organism that eats dead matter for energy
  7. 13. group of populations in the same environment at the same time
  8. 15. organism that eats only animals for energy
  9. 17. all the organisms that live in an area and there environment
  10. 18. symbiosis where one organism benefits and the other is unaffected