| A | B |
| Lamarck | proposed that organisms inherit aquired characteristics |
| Darwin | proposed the theory of natural selection |
| natural selection | survival of the fittest - includes variation, overproduction, competition, and differential survival |
| Wallace | a contemporary of Darwin who had similar ideas about natural selection |
| evolution | descent with modification; the change in organisms over a long period of time |
| speciation | the process of creating a new species |
| geographic isolation | two populations of birds are seperated by a large body of water and evolve into different species |
| parapatric speciation | when populations of neightboring organisms evolve into two new species due to differences in environment |
| behavioral isolation | new species arise due to barriers caused by mating rituals, reproductive behaviors, etc |
| abiogenesis | the theory that life arose from non-living molecules |
| biogenesis | the theory that life came from other living things |
| Miller and Urey | conducted experiments that simulated early earth and created amino acids |
| The type of organisms on Early Earth | prokaryotic and heterotrophic |
| cyanobacteria | early photosynthetic orgnaism |
| primordial soup | the proposed molecules and conditions that composed early earth, formed by Oparin |