| A | B |
|---|
| Beagle | name of ship Darwin sailed on |
| Darwin | published "The Origin of Species" |
| phylogenetic | trees that show how organisms are related |
| natural selection | mechanism of evolution Darwin and Wallace |
| evolution | genetic change in a population over time |
| Malthus | economist whose ideas about human population influenced Darwin |
| theory | explanation of natural events that is supportede by evidence and can be tested with new evidence |
| fossil | remains of ancient life |
| vestigial structure | homologous structure that is greately reduced in size and function |
| Hutton and Lyell | geologists who showed that the earth is millions of years old |
| adaptation | inherited characteristic that increases an organisms's chance of survival |
| Galapagos | Islands where Darwin observed variation in tortoises |
| fitness | ability of an individual to survive and reproduce in an environment |
| Wallace | along with Darwin, the co-founder of the theory of evolution |
| geographic | type of isolation between Darwin's finches |
| behavorial | type of isolation when birds no longer recognize each other's songs |
| gene | kind of pool that contains all the genetic information in a population |
| temporal | type of isolation when frogs are ready to mate at different times of the year |
| speciation | term that means formation of a new species |
| population | all the members of the same species that live in the same place |
