Across
- 4. group of similar organisms capable of interbreeding
- 7. speciation occurs over long periods of time
- 8. formation of new species
- 12. well tested and established explanation
- 13. change in amino acid
- 14. event where population is severely reduced
- 15. disappearance of a species
Down
- 1. proposed scientific theory of natural selection
- 2. mating phenotypically similar
- 3. living organisms develop through history
- 5. change to stop codon
- 6. mating phenotypical opposites
- 9. reproducing with a closely related individual
- 10. damage of DNA
- 11. ability for reproductive success