Across
- 2. the individual Galapagos islands are____to each other
- 5. has a small broad beak
- 7. This part of finches vary between all the different species
- 9. A historical sequence of life indicated by fossils
- 10. A singed cell organism
- 11. has a sharp beak
- 12. The island that Charles Darwin got most of his observations from
- 15. has a large broad beak
- 18. The process by which some organisms are better adapted then others
- 19. Charles Darwin's role during his voyage on the Beagle
Down
- 1. Who argued that populations grow faster then their resources
- 3. a genetically determined characteristic
- 4. A term that refers to an organism's ability to outrun its hunters
- 5. when humans breed animals or plants that have certain desired traits
- 6. An_____helps an organism survive
- 8. The ship Charles Darwin took during his expedition
- 13. Who what one of the first to say that earth must be far older than most people believed
- 14. members of the same_____can mate with one another
- 16. imprints or remains of once living things found in layers of rock
- 17. when populations change over time, _____has occurred