biology

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Across
  1. 2. Ability to survive and reproduce.
  2. 3. Harmful to human health.
  3. 5. Living + non-living environment.
  4. 7. Living parts of the environment.
  5. 8. One benefits, others unaffected.
  6. 9. Non-living parts of the environment.
  7. 11. Basic unit of life.
  8. 12. One hunts and eats another.
  9. 14. Trait that helps survival.
Down
  1. 1. Variety of life.
  2. 4. Change in species over time.
  3. 6. Both species benefit.
  4. 8. Fighting for resources.
  5. 10. DNA for Trait.
  6. 13. One benefits, one is harmed.