Across
- 5. too much offspring
- 8. the improvement of a species
- 9. a trait that gives advantage
Down
- 1. the answer to questions about genetics
- 2. change in species
- 3. Darwin's boat
- 4. ancestor all species have this (2 words)
- 6. Darwins profession
- 7. islands Where he discovered the finch (2 words)
- 10. selection this theory can be summarized in four steps (2 words)