Across
- 5. genetic change over time
- 9. responds to stimulus
- 10. knowledge obtained by experimentation
Down
- 1. father of genetics
- 2. energy molecule for cell
- 3. maintaining an internal environment
- 4. ___ anatomy helps identify evolutionary relationships
- 6. Origin of Species author
- 7. the earth is 4.5 _____ year old
- 8. study of life