Evolution Review

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Across
  1. 2. differences within a trait among those in a population
  2. 5. trait that increases an organism's survival in a particular environment
  3. 8. overall idea that populations' adaptations change over many generations
  4. 9. type of selection in which the environment chooses best adapted traits
  5. 10. source of variation, random changes in DNA
  6. 12. similar structures because of a common ancestor
  7. 15. ____ tree shows evolutionary relationships
Down
  1. 1. type of evolution that occurs with related species in different environment
  2. 3. observed natural selection of related species on the Galapagos because of variety of environments
  3. 4. type of evolution in which two species evolve together
  4. 6. combination of adaptations that allow for a species to survive AND reproduce
  5. 7. evolution occurring slowly over time with small changes, opposite of punctuated equilibrium
  6. 11. type of evolution that occurs in unrelated species in similar environments
  7. 13. structures of similar functions as a result of convergent evolution such as webbed feet
  8. 14. structures that have diminished in size because of un-use like tailbone in humans
  9. 16. family proposed group that humans belonged to that broke from other primates