| A | B |
| test predictions | can confirm predictions |
| Scientific models can only be proven | proven false, never proven true |
| Correlation does not equal | causation |
| Testable predictions cannot include | the supernatural |
| the supernatural | cannot, by definition, be tested scientifically |
| , the supernatural is outside | the realm of science |
| The term “theory” has a very different meaning | in science than in most everyday conversations |
| hypothesis | model that has not been tested or has only been tested some |
| theory | – model that has been tested extensively and is accepted by most scientists in that field |
| law | – usually a very well-established theory that explains a wide body of observations |
| Theory of Evolution | The Modern Synthesis |
| Evolutionary relationships between organisms provides | theoretical framework for modern classification systems |
| Evolutionary relationships | as such, it is the major organizing principle underlying the structure of most of this course |
| In POPULATIONS, new mutations | random) and recombination of current variations (random) occurs |
| Populations encounter | EVOLUTIONARY MECHANISMS |
| natural selection | greater reproduction by the “fittest” |
| genetic drift | random, greater for small populations |
| gene flow | (genetic exchange with other populations) |
| mutations | new changes in genetic material |
| Evolutionary mechanisms cause | MICROEVOLUTION: changes in population genotype and allele frequencies for the next generation. |