Living things and the environment.

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Across
  1. 3. all the different populations that live together
  2. 5. the surrounding conditions in which an organism live.
  3. 7. a group of the same species that live in the same area.
  4. 8. a group of similar organisms that can produce fertile offspring.
  5. 11. nonliving ting in the environment
  6. 12. place where an organism lives
Down
  1. 1. study of interaction among organisms and their environment
  2. 2. all organisms depending on each other.
  3. 4. any living part of the environment
  4. 6. all living things on Earth
  5. 9. a biological community of interacting organisms
  6. 10. an organism's role