Betsy

3. When a female choses a male to reproduce with
4. slow amount of change over a period of time
9. all genes combined present in a reproducing population of species
10. occurs during migration
11. a group of organisms that can reproduce with another in nature
12. the study of the embryonic development of organism
14. the study of the structure of organisms
16. species living together in a particular place
18. preserved remain of any once living prehistoric thing
19. biological change that makes descendents differ from their ancestors
20. when unrelated species evolve to have similar characteristics because of living in similar environments
21. the study of the chemical process in organisms
22. a feature that allows an organism to better survive in its environment
24. when bursts of change occur and followed by a period of stability
25. the elimination of a species
26. two organisms changing due to each other forming a specialized relationship

1. structure with little to no function to the organism
2. similar characteristics from common ancestry, including same structure but different function
5. when some organisms survive and reproducing causing changes in population
6. the study of prehistoric life
7. when a catastrophic event causes a sudden change in the environment
8. due to similar environments evolved similar functions but different structures
13. occurs at a slow rate due to climate changes and natural disasters
15. where living things are located
17. new species forming by evolution of pre-existing species
23. a random change in a cell