Unit 3- Evolution of Populations

Edit Answers
123456789101112131415161718
Across
  1. 2. destructive event leaves a few survivors in a population
  2. 3. measure of genetic variation in a population
  3. 6. produces similar characters in different species
  4. 8. certain traits increase mating success
  5. 11. when evolution is not happening a population is said to be in this type of equilibrium
  6. 13. combination of alleles and genetic variation in a population
  7. 15. change in alleles due to chance (decreases genetic diversity)
  8. 16. When a species fails to produce any more descendants
  9. 17. type of selection where one extreme is favored
  10. 18. type of selection where the intermediate trait is favored
Down
  1. 1. type of isolation cause by different mating times
  2. 4. few individuals from a population start a new colony (or population )
  3. 5. type of selection where BOTH extremes are favored
  4. 6. two or more species evolve together
  5. 7. Two species that are closely related become increasingly different
  6. 9. movement of alleles from one population to another
  7. 10. members of a population and can interbreed and produce viable, fertile offspring
  8. 12. type of isolation caused by physical barriers
  9. 14. type of isolation based on patterns and rituals (ie bird song)