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30 Cards in this Set
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- Back
- 3rd side (hint)
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Fossil |
the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock. |
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Organisms |
an individual animal, plant, or single-celled life form.
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Cast Fossil |
Noun. (plural cast fossils) A fossil formed when an animal, plant, or other organism dies, its flesh decays and bones deteriorate due to chemical reactions; minerals gradually enter into the cavity, resulting in a cast, also called a mold fossil, which is in the general form of the original organism.
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Mold Fossil |
mold-fossil. Noun. (plural mold fossils) A fossil formed when an animal, plant, or other organism dies and is covered by sediment, its flesh decays and bones deteriorate due to chemical reactions, and a cavity remains below the ground surface. |
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Trace Fossil |
a fossil of a footprint, trail, burrow, or other trace of an animal rather than of the animal itself. |
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Petrified Fossil |
Petrified wood. In geology, petrifaction or petrification is the process by which organic material is converted into a fossil through the replacement of the original material and the filling of the original pore spaces with minerals.
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Preserved Fossil |
A fossil is the physical evidence of any plant or creature that once lived on Earth |
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Carbonized Fossil |
formation of carbon from organic matter. |
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Fossil Record |
A term used by paleontologists ( see paleontology ) to refer to the total number of fossils that have been discovered, as well as to the information derived from them. ( See evolution of Earth.) |
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Diversity |
the state of being diverse; variety. |
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Relative Age |
considered in relation or in proportion to something else. |
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Absolute Age |
the magnitude of a real number without regard to its sign. |
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Index Fossils |
the magnitude of a real number without regard to its sign.
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Law of Superstition |
basic law of geochronology |
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Trilobites |
Creatures of the Paleozoic era |
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Geoloic time scale |
system of chronological measurement that relates stratigraphy to time
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Era |
a long and distinct period of history with a particular feature or characteristic
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Period |
Bigger then era smaller then epoch |
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Epoch |
Smallest on geologic time scale |
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Precambrian Eon |
First eon |
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Paleozoic Era |
First era |
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Mesozoic era |
Second era |
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Cenozoic Era |
Present day era |
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Quaternary period |
Present day period |
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Holocene Epoch |
Present day epoch |
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Natural selection |
one of the basic mechanisms of evolution
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Adaption |
Change due to environment |
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Variation |
Differences among population |
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Population |
Amount of species |
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Species |
Type of organism |
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