| A | B |
|---|
| fossil | life forms found in rock |
| Geologic record | how old is the Earth |
| Mold | Hollow Fossil |
| Cast | Solid Fossil |
| Vestigal Structures | parts of the organism with no use; the appendix is an example |
| Homologous Structures | body parts of different organisms that are similar in orgin and structure |
| Comparative Embryology | compare early stages of embryonic development; Different species look the same the first few weeks of development |
| Comparative Cytology | compare cells of all living things |
| Comparative biochemistry | compare compounds of different organisms (DNA) |
| Lamarck | theory of acquired characteristics |
| Weisman | Disproved the theory of acquired characteristics |
| Darwin | Developed a theory of Evolution |
| HMS Beagle | Name of the ship that Darwin sailed on to the Galapagos Islands |
| Survival of the Fittest | Variations among the population make some members better adapted to the environment |
| Natural Selection | Environment is the agent that determines which variations are helpful or harmful |
| Speciation | New species occur as variations occur in a population over many generations |
| evolution | theory of change over time |
| Finches | The birds Darwin studied in the Islands |
| Analogous Structures | These structures have no evolutionary relationship to each other |
