| A | B |
| Fitness | traits and behaviors that help an organism survive and reproduce in its environment |
| Adaptation | process that makes an organism better suite to its environment |
| Common descent | all living things cam from one ancestor |
| Homolgous structures | similar internally but differnet externally |
| Analogous structures | similar externally, but different internally |
| Artificial selection | humans select who breeds |
| Natural selection | process in nature that results in the most fit organism producing offspring |
| Species | similar looking and can produce fertile offspring |
| Niche | animals habitat and its role in that habitat |
| Bat wing | analogous to bird wing |
| Bat wing | homolgous to human arm |
| Convergent evolution | two organisms that evolve to look similar on the outside, but different internally |
| Divergent evolution | two things evolved from a common ancestor. They are similar internally, but different externally |
| Natural selection | example: giraffe with long necks |
| Competition for a niche | taz vs dingo |
| Mutation | change in DNA or gene pool |
| reproductive isolation | most common way speciation occurs |
| Speciation | creating new species |
| Assortive mating | picking a mate based on particular qualities |
| Genetic Drift | caused by random change in gene pool |
| Population | group of animals in the same species that also live in the same area |
| Vestigial organ | serve nouseful function in an organism |
| Diversifying selection | siberian tigers vs bali tigers |
| Stabilizing selection | sickle cell anemia in africa |
| Behavioral isolation | separation based on the way an animal acts |
| Temporal isolation | separation based on differences in mating periods |
| Gene pool | common groups of genes shared by a population |
| Larmarck | Inheritance of Acquired Characteristics |
| Malthus | struggle for existence |
| Hutton and Lyell | Earth's geologic processes have |
| Darwin | father of evolution |