Biology Crossword

2. The adjustment of an organism, used for benefit
6. Species that evolve in response to changes in eachother
7. Distribution A bell curve that has no outliers and has not been affected in any way
8. The gradual development of a species over time
9. collection of alleles found in all of the individuals of a population
11. When there is no gene flow between populations and new species evolve
14. A mathematical theory that calculates the probability of possible phenotypes in an organism
16. The remains or impression of a prehistoric organism that has been petrified
17. A group of organisms similar in features, capable of reproduction
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
19. The theory produced by Cuvier that states natural disasters that occur all throughout history, causes the extinction of an organism or species
20. The process by which an organism ceases to exist

1. A group of organisms of a species located in an area
3. The movement of alleles between populations
4. The process by which better adapted organisms survive and reproduce
5. The study of geographical distribution of plants and animals
10. The study of fossils
12. The ability to be passed from offspring to another
13. A relative measure of success of an organism
15. observable change in the allele frequencies of a population over generations