Across
- 4. process of changing
- 5. when different organisms independently develop similar traits.
- 7. remain traces of ancient organism
- 8. organism of the same species and lives at the same area
- 9. extermination of species
- 11. The totality of surrounding conditions
- 15. Change in a living organism
Down
- 1. change in DNA a sequence
- 2. a group of species born and living at the same time
- 3. English naturalist
- 6. Where things started
- 10. thought-out explanation
- 12. to reproduce
- 13. development of organism
- 14. the accumulation of differences between closely related populations within a species,