Across
- 3. people who study things
- 6. something scientists study that is in blood
- 7. the process in which inherited characteristics within a population change over generations
- 9. a naturalist who went on a ship called the beagle
- 10. has a small narrow beak
- 12. the formation of new species
- 13. a type of bird Charles Darwin studied on his trip to the Galapagos
- 14. has a tough beak for eating cactus
- 17. the human practise for breeding animals for particular traits
- 18. a group of organisms that are closely related and can mate
- 19. a characteristic that improves an individual's ability to survive and reproduce
- 20. the process of which individuals that are better adapted
- 21. a book charles Darwin Wrote
Down
- 1. the ship charles Darwin rode in
- 2. a historical sequence of life indicated by fossils
- 4. a generally determined characteristic
- 5. an ancient aquatic animal
- 8. a finch with a thick beak strong beak
- 11. an area where fossils are most commonly found
- 15. the trace or remains of an organism
- 16. the period between the birth of one generation and the birth of next
