Natural Selection

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Across
  1. 5. a genetically determined condition or characteristic
  2. 10. variation among organisms that make them the best adapted for their environment
  3. 11. type of bird that Charles Darwin studied
  4. 13. where DNA is found
Down
  1. 1. a new organism that is the product of reproduction
  2. 2. a behavior that an organism does to survive
  3. 3. any individual living thing
  4. 4. naturalist that studied on islands
  5. 6. all the living and nonliving things that surround an organism
  6. 7. a characteristic or property of an organism
  7. 8. smallest unit of life
  8. 9. a physical feature that an animal has to help it survive
  9. 12. change in an organism's DNA