Evidence of Evolution

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Across
  1. 2. (developmental homologies); similarities and differences exhibited by different organisms in the same stages of development
  2. 5. all species come from a common _______ making everything related
  3. 8. ________ records of lines of ancestry that are preserved through fossils locked in rock layers
  4. 9. abrupt or sudden changes in species after long period of stability; ________ equilibrium
  5. 10. _________ structures are similar in function but different in structure (example: butterfly wings vs bat wings)
  6. 11. species evolve slowly and gradually over time
Down
  1. 1. changes in species over time
  2. 3. ________ structures; remnants of an organ or structure that functioned in an earlier ancestor
  3. 4. __________ structures are similar in structure but have different functions (example: bones in animals)
  4. 6. DNA homologies; similarities in DNA, RNA and proteins in organisms that result from common ancestry
  5. 7. study of how and why plants and animals live where they do