Evolution Review

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Across
  1. 2. A structure that was retained during evolution but has no specific function in an organism
  2. 5. Homologous structures are all derived from a common:
  3. 6. The type of selection that selects for two extremes
  4. 9. More _______ are born than can survive
  5. 10. Organisms that are more closely related have similar patterns of _________ development
  6. 11. This trait was affected by natural selection in Finches
  7. 12. Antibiotic resistance occurs on a short time scale. This is an example of:
Down
  1. 1. When a certain trait presents an advantage and is selected for
  2. 3. The ability to survive to an age of reproduction and successfully pass on your genes
  3. 4. Using isotopes can determine the age of fossils through __________ dating
  4. 7. Fossils become part of the ______ rock layer
  5. 8. The forelimbs of vertebrates are _____ structures