Mid Term Science Study Crossword

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Across
  1. 2. When two or more organisms fight for the same limited resource
  2. 4. A relationship where both organisms benefit
  3. 7. Organisms fight/use the same limited resources
  4. 8. The nonliving parts of the environment
  5. 10. An organism that must eat other organisms for energy
  6. 14. When individuals move into a population from another area.
  7. 16. An organism that makes its own food using sunlight
  8. 17. When individuals leave a population and move out of an area.
  9. 18. One organism benefits and the other is harmed
Down
  1. 1. All the different populations that live together in one area.
  2. 3. An organism that breaks down dead plants and animals and returns nutrients to the soil
  3. 5. The Study of how living things interact with each other and with their environment.
  4. 6. Anything that restricts the size of a population
  5. 9. A group of individuals of the same species living in the same area at the same time.
  6. 10. One organism benefits and the other is unaffected
  7. 11. A diagram that shows how energy decreases as it moves up through the food chain
  8. 12. The living or once living parts of an ecosystem.
  9. 13. A model that shows all the feeding relationships in an ecosystem
  10. 15. The maximum number of individuals an environment can support