| A | B |
|---|
| adaptation | a trait that makes an organism more likely to survive and reproduce |
| homologous structure | similar function and structure amongst a group of species |
| vestigial structure | human appendix, pelvic girdle in whales |
| natural selection | organisms most well-suited to their environment are more likely to survive and reproduce |
| divergent evolution | species that evolve from a common ancestor evolve similar traits |
| prezygotic isolation | reproductive barriers prior to mating |
| postzygotic isolation | reproductive barriers that occur after mating |
| species | organisms that have a similar appearance, can reproduce, and give rise to viable offspring |
| fitness | a measure of how likely it is that an organism will survive and reproduce |
| fossil | remnant of a past life |
| microevolution | a process in which there is a change in the gene frequencies in a population; occurs to a single population. |
| sexual selection | occurs when mates are selected based upon the appearance of certain traits |
| evolution | change over time |
| temporal isolation | differences in mating seasons, migration, hibernation |
| behavioral isolation | differences in mating rituals, courtship behaviors |
| phylogeny | the science that explores the evolutionary relationships amongst organisms |
| systematics | the science of organizing the diversity of life |
| taxonomy | the science of naming and classifying organisms |
| cladogram | a diagram that uses shared characteristics to examine common ancestry |
| camouflage | blending in with one's environment |
| mimicry | an adaptation that occurs when a harmless organism looks similar to a harmful or distasteful organism |
| taxon | a related group of organisms. Example: phylum |
| scientific name | a combination of an organism's genus and species |
