Across
- 2. database that documents changes in past life on Earth
- 4. comparing genes of different organisms
- 6. separation of a species or population so they no longer interbreed and evolve into 2 separate species
- 8. diversity in gene frequencies
- 9. organisms share common ancestors
- 10. heritable trait that increases an organisms ability to survive and produce in an enviornment
Down
- 1. known as survival of the fittest
- 3. form of evolution that is the accumulation of differences among groups which can lead to new species
- 5. independent evolution of similar features in species of different lineages
- 7. organisms diversify rapidly into a multitude of new forms
- 8. form of isolation where 2 populations are separated by geographic barriers
