| A | B |
|---|
| Species | A specific kind of organism. All members have the same traits and reproduce to produce more of the same kind of organism |
| Evolution | The process by which spedies change over time |
| Natural Selection | Slight differences make some individuals better able to survive (better adapted to their environment) than others. These organisms will survive and pass on their traits. |
| Extinction | The dying out of a species |
| Kingdoms | The five large groups into which scientists classify all living things |
| Monerans | Simple, one celled organisms |
| Protists | More complex ormany-celled microscopic organisms |
| Fungi | These organisms absorb nutrients from other organisms |
| Plants | Many celled-use photosynthesis forenergy and growth |
| Animals | Many-celled, eat food |
| Petrified fossils | Mineralized copies of the originals, these fossils have had all their parts changed to stone |
| Trace fossils | footprints, tracks, and trails left by animals (which have become fossilized) |
| Coprolites | Waste materials from animals which has become petrified |
| Unchanged Fossils | In this type of fossil, matter from the original organism has been unchanged. It may have been frozen,orpreserved in amber or tar |
| The Principle of Superposition | This principle states that younger rock layers are formed on top of older rock layers |
| Absolute Age Dating | The dating of a fossil based on age in years |
