Evolution

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Across
  1. 3. center line of the Earth
  2. 6. changes that help a species
  3. 9. # and variety of species in an area
  4. 10. to be able to grow up and mate
  5. 11. to be chosen
Down
  1. 1. group of islands
  2. 2. water falling from the sky
  3. 4. from the Earth
  4. 5. studied Gallapagos Islands
  5. 7. changes over time
  6. 8. local atmospheric conditions