Chapter 1

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Across
  1. 1. a sequence of how organisms use other organisms for food
  2. 3. spend the winter dormant
  3. 4. seasonal movement of animals from a region to another
  4. 7. an organism that eats food
  5. 9. the scientific study of the relationship between living things and their environment
  6. 11. a group of living and nonliving things and their environment
  7. 13. an organism that breaks down dead plant and animal material to return it to the soil
  8. 14. everything around an organism
Down
  1. 2. any living thing
  2. 5. someone who studies ecology
  3. 6. an animal that hunts another animal for food
  4. 8. an organism that can make its own food
  5. 10. an animal that is hunted by a predator
  6. 12. an animal that feeds on dead or decaying animals or things