Across
- 4. The remains or trace of a deceased organism.
- 5. The process by which a breeder develops a plant or animal to have certain traits.
- 8. Any heritable trait that increases an organism's ability to survive and reproduce.
- 10. How well an organism is suited for its environment.
- 11. The distribution of plants and animals around the world.
- 12. An early stage of development in animals.
- 13. Structures that have similar purposes but different anatomy and were not inherited from a common ancestor.
- 14. Types of structures that are anatomically similar yet different that were inherited from a common ancestor.
Down
- 1. Traits that an organism develops in their lifetime.
- 2. Structures that have little to no purpose anymore.
- 3. The ship Darwin explored on.
- 6. A fossil that shows an organism between two species.
- 7. A trait that has newly evolved.
- 8. A primitive trait that was passed down by an ancestor.
- 9. The idea that Earth is much older than 6000 years.