Evolution & Natural Selection

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Across
  1. 4. Ability to survive and reproduce
  2. 8. Disappearance of a species
  3. 9. Differences between individuals
  4. 11. Trait that helps an organism survive
Down
  1. 1. Change in DNA
  2. 2. Scientist who proposed natural selection
  3. 3. Passing traits from parent to offspring
  4. 5. Process where favorable traits prevail
  5. 6. Gradual change in species over time
  6. 7. Type of selection in the wild
  7. 10. Group of organisms that can interbreed
  8. 12. Variant form of a gene