| A | B |
|---|
| Vestigial organ | An organ no longer used by an organism, but was believed to have been used by an ancestor |
| Homologous structures | Structures like bat wing and human hand that are similar in structure and function implying a common ancestor |
| Embryological development | Comparing the development of embryos implying a common ancestor |
| DNA comparison | Comparing the DNA of different organism implying a common ancestor |
| Gel electrophoresis | DNA fingerprinting |
| Taxonomy | System of classification |
| Taxa or taxon | A grouping within the taxonomy |
| Fossil | Any impression left of a past organism |
| Relative dating | Dating based on where it is located in the ground |
| Radiometric dating | Dating based on the amount of an radioactive isotope left in the fossil |
| Natural selection | Survival of the fittest |
| Evolution | A gradual change of a species over time |
| Artificial selection | Man actually chooses what will be selected like in dog breeder |
| camouflage | Evolutionary adaptation where an organism blends in to his environment |
| Mimicry | Evolutionary adaptation where an organism copies another organism to trick others |
| Charles Darwin | Father of evolution |
| Primitive | Old- simplest |
| Heterotrophic, anaerobic prokaryote | Believed to be the first organism on earth, everything evolved from |
| Bacteria | Kingdom composed of prokaryotes, they are major decomposers and often cause diseases |
