Across
- 2. speciation that occurs in geographically overlapping populations
- 4. changes in gene frequencies in populations
- 7. change within a population overtime
- 8. a proposed explanation as a starting point for further investigation
- 10. the ship that Darwin sailed on
- 11. random changes to allele frequencies
- 12. movement into a population
Down
- 1. similarity due to common ancestry
- 3. the highest classification of organisms
- 5. reproductive barriers after fertilization
- 6. a type of sexual selection that is male vs female
- 9. contribution an individual makes to the gene pool of the next generation