Across
- 1. Evolutionary history of a species
- 6. Trait that helps an organism survive
- 9. Preserved remains of ancient organisms
- 10. of Evolution Data supporting descent with modification
- 11. Selection Human-driven selection of traits
- 14. Frequency How common a specific allele is in a population
- 16. Group of organisms of the same species
- 17. Drift Random changes in allele frequencies
- 18. Principle explaining genetic stability
- 19. Selection Process where fit traits increase
Down
- 2. Study of embryos to trace evolutionary relationships
- 3. Formation of a new species
- 4. Pool All the genes in a population
- 5. Structures Similar traits from a common ancestor
- 7. Similar traits not from a common ancestor
- 8. Organs Body parts that have lost their original function
- 12. Ability to survive and reproduce
- 13. Differences within a species
- 15. Change in a species over time