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.