Across
- 1. blending into the environment
- 4. how long an organism is able to survive and reproduce
- 5. each bird developed different shaped beaks
- 7. an organisms ability to adapt to its environment over time
- 8. physical traits
- 9. the passing of genetic material
Down
- 1. studied different beak types
- 2. genetic traits
- 3. organisms most desirable traits survive; those who struggle are unfit
- 6. Darwin studied finches because of their different