Across
- 2. The theory produced by Cuvier that states natural disasters that occur all throughout history, causes the extinction of an organism or species
- 5. When there is no gene flow between populations and new species evolve
- 6. The gradual development of a species over time
- 9. A group of organisms similar in features, capable of reproduction
- 11. The process by which an organism ceases to exist
- 12. observable change in the allele frequencies of a population over generations
- 15. The movement of alleles between populations
- 16. The study of fossils
- 18. A theory by Hutton. It states that the laying down of soil results from a slow process that happened over a long period of time
Down
- 1. The process by which better adapted organisms survive and reproduce
- 3. The adjustment of an organism, used for benefit
- 4. The ability to be passed from offspring to another
- 7. A relative measure of success of an organism
- 8. The remains or impression of a prehistoric organism that has been petrified
- 10. The study of geographical distribution of plants and animals
- 13. Species that evolve in response to changes in eachother
- 14. A group of organisms of a species located in an area
- 17. collection of alleles found in all of the individuals of a population