Across
- 2. when 2 populations become increasingly different from one another.
- 3. French scientist who was wrong about acquired traits.
- 6. the formation of new species.
- 11. the change in a population of species over time.
- 13. any trait that increases an organisms fitness.
- 14. structure that has decreased in size and has little or no purpose.
- 15. similar structures present in different organisms and does not always have the same function.
- 17. lung disease caused by many strains of antibiotic resistant bacteria.
- 18. similarities in amino acid sequences in these macromolecules is evidence of evolution.
- 19. the more similar the _______ sequence is of two species, the more closely they are related.
Down
- 1. type of evolution that involves several small changes over a long period of time.
- 4. selection when humans decide which organisms will breed.
- 5. developed the theory of evolution.
- 7. type of selection in which only organisms with traits that are suitable for their habitat survive.
- 8. scientist that studies fossils.
- 9. mineralized or imprints of specimens found in layers of rock layers.
- 10. a characteristic.
- 12. type of bird Darwin observed on the Galapagos Islands.
- 15. ship that Darwin sailed around the world on.
- 16. island chain that Darwin visited.