Evolution 10aSc1

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Across
  1. 5. A consumer of plants
  2. 7. Avoiding a stressful environment by sleeping
  3. 9. Desert animal with closable nostrils
  4. 10. Adaption that helps an organism to avoid being seen
  5. 14. A consumer of plants and animals
  6. 15. An organism that lives on/in another giving nothing in return
  7. 16. A consumer of animals
  8. 18. The dry mass of an organism
  9. 19. An animal killed by another for food
  10. 20. Natural ????????? , the driver of evolution
Down
  1. 1. The description of plants, creating their own food
  2. 2. The unique way an organism has of surviving in its environment
  3. 3. Two or more organisms seeking the same resources in the same area leads to this
  4. 4. When a species of organism ceases to exist it has become ???????
  5. 6. Avoiding a stressful environment by moving to a new one
  6. 8. Gaining characteristics from parents
  7. 11. The relationship between organisms where both gain
  8. 12. The name of the man who came up with the theory of natural selection at the same time as A. R. Wallace
  9. 13. Pine tee leaves are reduced to these
  10. 17. The gradual change in an organism over time
  11. 18. The name of the boat on which Darwin sailed