Across
- 3. developed the major idea of natural selection by observing evolution from a common ancestor
- 5. Structures that no longer serve an important function
- 6. change in a gene that can be helpful, harmful, or neutral
- 7. mutations developing over generations to create new species
- 8. Structures that have similar arrangement, different function
- 9. Part of natural selection that says more are born than will survive
- 12. process or feature that allows a population to become better suited to its environment
- 14. Part of natural selection that says organisms fight for the same resources
- 15. Pattern of evolution where species change together
- 16. Evidence used to show why species become different due to environment
- 17. Structures that have similar function, different arrangement
Down
- 1. Part of natural selection that is most important, gives differences in a population
- 2. Organisms well suited to their environment reproduce more successfully
- 4. Pattern of evolution where species become similar
- 10. Evidence used to show similarities in species
- 11. Part of natural selection that says surviving organisms must be able to reproduce.
- 13. Pattern of evolution where species become different
