Biology

Edit Answers
1234567891011121314151617181920212223242526
Across
  1. 2. Selection The process by which humans selectively breed organisms for specific traits.
  2. 5. An adaptation that allows an organism to blend in with its environment to avoid predators.
  3. 7. Selection A type of natural selection that favors individuals at both extremes of a trait over the average.
  4. 9. Equilibrium A principle stating that allele frequencies in a population remain constant if specific conditions are met.
  5. 11. Flow The transfer of alleles between populations through movement of individuals or gametes.
  6. 12. Isolation The separation of populations by physical barriers, leading to speciation.
  7. 14. The movement of individuals into a population.
  8. 15. Pool The total collection of genes in a population.
  9. 18. A trait that helps an organism survive and reproduce in its environment.
  10. 19. Anything required by an organism to survive, grow, and reproduce.
  11. 20. An adaptation where an organism resembles another species for protection or other advantages.
  12. 21. Selection A type of natural selection that favors the average phenotype, reducing variation.
  13. 22. A group of individuals of the same species living in the same area.
  14. 23. An organism’s ability to survive and reproduce in its environment.
  15. 24. Structures in different species that have a similar form due to common ancestry.
  16. 25. Drift Random changes in allele frequencies in a population, often affecting small populations.
  17. 26. Frequency: The proportion of a specific allele within a population's gene pool.
Down
  1. 1. Selection: The process where organisms with favorable traits are more likely to survive and reproduce, passing those traits to future generations.
  2. 3. The theory that evolution occurs slowly over long periods through small changes.
  3. 4. Differences among individuals of the same species.
  4. 6. Variation Differences in the genetic makeup of individuals within a population.
  5. 8. Isolation When populations do not mate due to differences in mating behaviors.
  6. 10. The movement of individuals out of a population.
  7. 13. Isolation When populations reproduce at different times, preventing interbreeding.
  8. 16. Selection A type of natural selection that favors one extreme phenotype over others.
  9. 17. Effect A sharp reduction in the size of a population due to environmental events, leading to reduced genetic diversity.
  10. 23. Effect A type of genetic drift that occurs when a small group of individuals establishes a new population, leading to reduced genetic diversity.