Across
- 1. Most liked
- 4. To stay alive
- 8. To create new life
- 10. Birds used in studies for Natural Selection
Down
- 2. The process of changing to suit a particular environment
- 3. He studied Natural Selection for most of his career as a scientist
- 5. What all organisms are composed of
- 6. The surrounding area
- 7. Specific kinds of organisms
- 9. All living things