Across
- 4. experiment with flies and maggots
- 8. divergent evolution
- 10. the atmosphere is composed of these
Down
- 1. living organisms produce other living organisms
- 2. wrote the orgin of species
- 3. one organism lives inside the other
- 5. believed organisms were the same since creation
- 6. building blocks of protein
- 7. 2 species evolve in response to changes in each other
- 9. first cells on earth