organisms

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Across
  1. 2. surface of earth where life is
  2. 3. any nonliving part of the environment
  3. 8. same species in a habitat
  4. 9. abiotic and biotic factors
  5. 10. study of how organisms interact with their environment
  6. 12. single living things
Down
  1. 1. important organism that plays a vital role
  2. 2. any living part of the environment
  3. 4. total amount of living tissue within a given trophic level
  4. 5. series of steps in which organisms transfer energy
  5. 6. all living things that live in a area
  6. 7. areas with similar climate life
  7. 11. organisms that rely on other organisms for energy and nutrients