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28 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Fossil |
I plant and or animal remains dated back 10,000 years ago |
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Organisms |
Organisms is any contiguous living system. |
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Cast fossil |
A cavity shapes as the organism that died there. |
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Mold Fossils |
Organisms that died and then covered by sediments |
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Trace molds |
Trace molds are footprints tracks burrows boring a and feces |
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Petrified |
Fossils buried for so long they turned to stone. |
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Preserved fossil |
Still looks the same way it did 10,000 years ago. |
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Carbonized Fossil |
When an organism is compressed leaving only carbon in its place |
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Fossil record |
The history of fossils |
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Diversity |
Variety |
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Absolute age |
Absolute dating is the process of determining an age |
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Index fossils |
A fossil that is useful for correlating |
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Law of superposition |
An axiom that forms one bases of science |
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Tributaries |
An extinct marine arthropod |
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Era |
A long distinct period of history |
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Period |
A length or portion of time |
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Epoch |
A small period of time |
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Precambrian Era |
The earliest length of time |
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Paleozoic |
Earliest of three geologic eras of the Phanerozoic eon |
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Mesozoic era |
Time about 252 to 66 million years ago with dinosaurs. |
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Cenozoic Eras |
The era of humans |
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Quaternary Period |
Is current time period |
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Holocene epoch |
The more recent of the two epochs |
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Natural Selection |
When an animals adaptations help them survive |
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Adaptation |
A physical property that helps it survive |
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Variation |
A certain adaptation to some species |
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Population |
An amount of one animal or species. |
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Species |
A variation of one type of animal |
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