Across
- 4. trait that increases the chance that an individual will survive and reproduce
- 5. purposeful selection of specific phenotypes by humans
- 7. features shared by two or more species that were inherited from an ancestor
- 8. the origin of genetic variation via changes in DNA nucleotides
- 9. the study of how species and populations are distributed geographically
- 10. migration of individuals and movement of gametes between populations
Down
- 1. change over time
- 2. changes the direction of the average phenotype in a single direction
- 3. group of organisms that mate with one another and produce offspring
- 6. taxon that contains an ancestor and all descendants