Across
- 3. geographic distribution of life
- 4. actual age of object in years
- 9. wisdom teeth, tailbone,appendix
- 10. "discovered" evolution
- 11. age of object in relation to object
- 13. given or passed antibodies
- 14. evolved from prokaryotes,nucleus
- 15. preserved remains of plant/animal
- 16. change event=change in allele
- 17. study of developing embryos
- 18. change in DNA,increases variation
- 19. organisms change over time
Down
- 1. body produces antibodies
- 2. try to explain life on earth
- 5. same structure, different function
- 6. variety of living things
- 7. no nucleus,first cells
- 8. selective breeding
- 12. similar function,different origin