Comparative Morphology

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Across
  1. 1. structures within species that provide no current use
  2. 3. time period that comparative morphology dates back to
  3. 6. body parts in different species that are structured the same way
  4. 7. the process in which organisms with advantageous mutations pass more of their genes down to succeeding generations
  5. 9. the study of form
  6. 10. process in which a species becomes increasingly dissimilar until it is a new species
Down
  1. 2. body parts in different species that perform the same functions but are structured differently
  2. 4. the species current ones have biologically descended from
  3. 5. descent with modification over generations
  4. 8. species residing in similar environments develop similar structures through______