| Across |
| 4. |
structures with the same function, but are structurally different |
| 6. |
individuals that can interbreed and reproduce viable offspring |
| 8. |
variety of species |
| 10. |
study of embryos that can be used as evidence of common ancestry |
| 12. |
physical appearance of a trait |
| 14. |
random event causes a change in allele frequency |
| 15. |
type of reproduction that results in genetically identical offspring |
| 16. |
how often an allele appears in a population |
| 17. |
differences in genes |
| 18. |
formation of new species |
|
|
| Down |
| 1. |
random change in DNA sequence |
| 2. |
type of reproduction that results in genetically unique offspring |
| 3. |
structures that show common ancestry |
| 5. |
mechanism of evolution where species that have traits most fit for their environment reproduce |
| 7. |
members of the same species that live in the same geographic area |
| 9. |
heritable changes in a species or population over generations |
| 11. |
structures that have are remnants of an ancestor, but no longer have a necessary function |
| 13. |
trait that helps an organism survive in its environment |
|
