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