| Across |
| 3. |
phsyical traits of difirent species that serve a similar function but have different common ancestors. |
| 4. |
the amount of a gene in the population. |
| 7. |
when a new species is formed. |
| 8. |
a catastrophic event that changes the alele frequency of a population. |
| 10. |
the physical structure of an organism. |
| 12. |
change in allele frequencies. |
| 14. |
physical traits of an organism that no longer have a purpose |
| 15. |
the study of life. |
|
|
| Down |
| 1. |
when a species has similar anatomy from a common ancestor with different uses of their physical traits. |
| 2. |
the branch of biology that deals with the geographical distribution of plants and animals. |
| 5. |
organisms who are better adapted to their environment are more likely to survive than others. |
| 6. |
when common ancestors end up with different traits. |
| 9. |
the adaption to surroundings done by a species over generations |
| 11. |
reproduction based on physical appearance |
| 13. |
It is the carrier of genetic information. |
|
