Across
- 4. Genetic change in a new small population
- 5. Ability to survive and reproduce
- 7. One species resembling another
- 14. Mating prevented by behavioral differences.
- 15. Something needed for survival
- 16. A trait that aids survival and reproduction
- 17. Favors one extreme trait
- 19. The proportion of an allele in a population
- 20. Random allele frequency changes
Down
- 1. Survival of the fittest traits
- 2. Human-driven breeding for desired traits
- 3. Differences in DNA among individuals
- 6. Favors both extremes over the average
- 8. Movement of alleles between populations
- 9. Physical barriers block reproduction
- 10. Individuals joining a population
- 11. Individuals leaving a population
- 12. Population loss reduces genetic diversity.
- 13. All genes in a population
- 18. A group of the same species