Ecology Part 1

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Across
  1. 6. An animal that preys on other animals for food
  2. 7. A nonnative organism that harms an ecosystem
  3. 8. A living organism that shapes its environment
  4. 14. The natural environment of an organism
  5. 15. A predator without natural predators of its own
  6. 16. The interaction between organisms that both need a limited resource
  7. 17. Organisms that consume other organisms to obtain their energy
  8. 18. The adaptation to a repeated stimulus
  9. 19. Animals that are killed and eaten by other animals
  10. 20. The living organisms and environment and how the two interact
Down
  1. 1. Constraints to a population's overall size
  2. 2. Measure of the amount of different species in an area
  3. 3. A species on which other species in an ecosystem largely depend on
  4. 4. The number of animals a single ecosystem can support
  5. 5. The span of genetic variation in a species
  6. 9. A non-living part of an ecosystem that shapes its environment
  7. 10. The position of an organism in the food chain
  8. 11. An organism that creates its own food or energy
  9. 12. An organism that breaks down dead plant or animal matter
  10. 13. Sequence of organisms through which nutrients and energy passes