Genetic Variation

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Across
  1. 2. Two or more species can evolve together through ____________.
  2. 5. the elimination of a species from Earth.
  3. 7. the crossing of two different species.
  4. 8. __________ evolution describes evolution towards similar traits in unrelated species.
  5. 9. increases the chance that some individuals will survive.
Down
  1. 1. forms new combinations of alleles.
  2. 3. a random change in the DNA of a gene.
  3. 4. describes populations that are not evolving.
  4. 6. __________ evolution describes evolution towards different traits in closely related species.