Across
- 4. The genetic makeup of a person
- 7. a group of genes
- 10. Created the theory of evolution and natural selection.
- 11. younger layers of the earth tend to stay at the top while older layers tend to be deep below
Down
- 1. the physical trait caused by your genes
- 2. changing to survive better in a environment
- 3. a record of every discored fossil
- 5. A hereditary unit that shows a living beings genetic makeup
- 6. the process of a species changing over millions of years
- 8. Animals with traits that give them advantages to survive live on.
- 9. remains of creatures from millions of years ago