NATURAL SELECTION
Across
- 3. a slight difference
- 7. Selection, the process leading to evolution
- 8. the gradual development of a species
- 9. a community of animals, plants or people
- 11. developing in a similar direction
- 13. the set of genes in our DNA responsible for a specific trait
Down
- 1. the ability to live
- 2. developing in different directions
- 4. the production of offspring
- 5. the process of change through which an animal becomes better suited to the environment
- 6. Darwin, the man famous for his work on natural selection
- 10. the physical expression of a gene
- 12. the changing structure of a gene