Chapter 17 Vocab- Honors Biology

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Across
  1. 7. Natural selection in which individuals at the upper and lower ends of the curve have higher fitness than individuals near the middle of the curve.
  2. 8. Form of natural selection in which individuals near the center of a distribution curve have higher fitness than individuals at either end of the curve.
  3. 11. The evolution of a species by gradual accumulation of a small genetic change over long periods of time.
  4. 13. Separation of a species or population so that they no longer interbreed and evolve into two separate species.
Down
  1. 1. When individuals select mates based on heritable traits.
  2. 2. Change in allele frequencies as a result of the migration of a small subgroup of population.
  3. 3. Form of reproductive isolation in which two populations develop differences in courtship rituals or other behaviors that prevent them from breeding.
  4. 4. Pattern of evolution in which long stable periods are interrupted by brief periods of more rapid change.
  5. 5. Form of natural selection in which individuals at one end of a distribution curve have a higher fitness than individuals in the middle or at the other end of the curve.
  6. 6. Form of reproductive isolation in which two populations are separated by geographic barriers such as rivers, mountains, or bodies of water, leading to the formation of two separate subspecies.
  7. 9. Form of reproductive isolation in which two or more species reproduce at different times.
  8. 10. A change in allele frequency following a dramatic reduction in size of population.
  9. 11. The transfer of alleles or genes from one population to another.
  10. 12. Random change in allele frequency caused by a series of chance occurrences that cause an allele to become more or less common in a population.