| A | B |
|---|
| biodiveristy | the degree of different types of species living in a defined area |
| DNA | molecular evidence used to show the closeness of gene sequence betwen species |
| niche | the role that an organism plays within the environment |
| fossil | an artifact of anceint plant or animal remains |
| Lamarck | person who incorrectly theorized that traits could be acquired during a lifetime and passed down |
| Hutton & Lyell | jointly developed the theory of geological formations and concluded that the earth was much older than orginally thoguht |
| Malthus | an economist who developed the theories of competing struggles for resources & existance among populations |
| variations | naturally occuring differences between species that result from random breeding and mutations |
| adaptation | the ability of some organisms to survive better to changes in their environment better than others of their species |
| artificial selection | the process of controlled breeding of plants and animals |
| fitness | the ability of an organism to struggle, vary, adapt, and naturally select better than others of the kind |
| common | Darwin believed in the Principal of ______ decent where all species evolved from a common ancestor |
| tree of life | the model that Darwin used to illustrate his theory of evolution |
| analogous | distinct changes in anatomy from closely related species |
| homologous | structural similarites in anatomical arrangements with modification between species, ie hand structure |
| vesitigal | non-functioning anatomical structures or remnants that remain in evolved species |
| embryology | the comparison of cellular tissues and development between different species |
| natural selection | the process of species adapting to happenstance leading to speciation |
