Across
- 2. A group of species that shares a common ancestor
- 5. the study of the entire animal kingdom
- 8. animals that don´t have a backbone
- 9. a common method to make evolutionary trees
- 10. animals that have a backbone
Down
- 1. the mechanism of evolution
- 3. a characteristic shared by two species that is similar because of common ancestry
- 4. A group of organisms that can reproduce and have fertile offspring
- 6. a tool that allows the user to determine the identity of items in the natural world
- 7. Language used for scientific names