Across
- 2. happens with natural selection
- 6. levels can kill fish when its low
- 8. natural process where something takes place
- 9. studied pet and farm animals
Down
- 1. the struggle with living things
- 3. gave Darwin notes to help him out with his research
- 4. were bread by Darwin
- 5. makes individuals better to adapt
- 6. can happen usual but it could be good or bad
- 7. selection is a process of individuals that are betteradapted to their envirement are more likely to survive