Evolution

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Across
  1. 2. the name of the ship that Darwin travelled on
  2. 3. natural selection is also known as the survival of the _________
  3. 5. principle that states that living species are descended from ancient ones; descent with __________
  4. 6. when two species evolve together
  5. 11. Structures that are similar
  6. 12. A characteristic that helps an organism survive
  7. 15. proposed the theory of evolution by natural selection
  8. 16. change over time
Down
  1. 1. the process by which evolution occurs - Natural ______
  2. 4. refers to the variety of living things
  3. 7. well-supported testable explanation
  4. 8. when organisms disappear from the Earth
  5. 9. preserved remains of ancient organisms
  6. 10. Islands that Darwin visited
  7. 13. The name of Darwin's book - the ____of species
  8. 14. had different shaped beaks depending on the island they were from