Zeylene

2. Unrelated species evolve similar characteristics
5. The process of biological chnage that makes decendants differ from their ancestors
6. New enviroments caused them to envolve to be different
9. Some organisms will survive and reproduce better than others
13. The study of prehistoric life
18. When a Catastrophic event changes the enviroment
19. Traits that aren't necessarily good for survival fitness
20. Populations can show variations on different islands
21. Occurs at a slow rate
22. The remains of a once-living organism and/or its behaviour.
23. When slow changes over a long period of time
26. A change in gene frequency over time
27. Any change in the DNA sequence of a cell.

1. Some sort of isolation must occur
3. Remnants of structures that has functions in ancestors
4. organisms change to eachother forming an relationsip
7. The importance of embryonic development of organisms
8. Same structure different function
10. The study of the chemical process in organisms
11. A group of living organisms consisting of similar individuals capable of exchanging genes
12. A combination of all the genes/alleles in a reproducing population or species.
14. A feature that allows an organisms to better survive in its enviroment
15. Lots of change b periods of stability
16. The importance of the structures of organisms
17. Similar function different structure
24. Movement of genes in/out of a population
25. A community of interbreeding members that involve animals, plants, or humans