Unit 1 Review Puzzle

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Across
  1. 4. trait that increases the chance that an individual will survive and reproduce
  2. 5. purposeful selection of specific phenotypes by humans
  3. 7. features shared by two or more species that were inherited from an ancestor
  4. 8. the origin of genetic variation via changes in DNA nucleotides
  5. 9. the study of how species and populations are distributed geographically
  6. 10. migration of individuals and movement of gametes between populations
Down
  1. 1. change over time
  2. 2. changes the direction of the average phenotype in a single direction
  3. 3. group of organisms that mate with one another and produce offspring
  4. 6. taxon that contains an ancestor and all descendants