Across
- 2. mid 18th century, classification hierarchy and binomial naming
- 6. 1798, essay on population growth
- 7. 1830s, principles of geology; processes today same as past
- 9. Came up with similar explanation of diversity to Darwin, worked in the Malay Islands in South Pacific
Down
- 1. 1795, gradual geologic change and age of earth
- 3. Ancient Greece, life organized by a ladder of increasing complexity
- 4. natural selection, descent with modification, adapation, unity of life, branching tree
- 5. early 19th century study of fossils
- 8. 1809, idea that life changes but incorrect hypothesis