Across
- 3. The layer of our atmosphere where ozone is trapped
- 6. Blueprints for life
- 8. States that "the most fit" will suvive in their environment
- 9. Charles _____ was the first person to theorize evolution
- 11. Ability to reproduce and survive
- 12. A unborn offspring of a species
- 13. A square we can use to determine chances of traits to show in offspring
- 15. Organs that we don't use anymore
- 16. A cell that lacks a nucleus. Considered the first cells on earth
Down
- 1. A fossil that is inbetween two fossil layers
- 2. Self-reproduction
- 4. The study of embryo
- 5. A change in a species to help it survive in its environment
- 7. Organisms better adapted to their environment will more likely survive
- 10. How an animal makes offspring
- 12. Cells that have a nucleus.
- 14. A change in a species over time