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Fossil Record: Terms
Question | Answer |
---|---|
Abiotic/physical factors | non-living factors such as erosions wind sun exposure |
benthic | loving at the bottom of the ocean or on the ocean floor |
biotic factors | living factors such as decomposers scavengers and predators |
body fossil | body parts of organisms that become fossils such as bones teeth skin leaves tree trunks |
cast | casts are formed when sediment leaks into a mold and hardens to form a copy of the original |
compression | fossils form when an organism is flatten compressed leaving a dark stain in the rock |
coprolite | fossil feces |
decomposer | an organism that breaks down the tissue and or structures of dead organisms |
erosion | weathering or wearing away of the rock and earth and any fossils they contain caused by wind sun or water |
fossil | the natural remains or traces of past life something is considered to be a fossil if it is at least |
fossil record | all of the fossils that have existed throughout life's history whether they have been found or not |
groundwater | water found underground as an result of rain fall ice snow melt submerged rivers lakes and springs |
lehnology | the study of trace on fossils |
igneous rock | type of rock produced when molten magma cools and solidifies |
impression | not from living thing leaf prints skin prints and foot prints are good examples |
inorganic | not containing carbon |
intertidal | the coastal zone between the low and the high tide mark where waves impact the land |
metamorphic rock | rock produced when any type of rock is changed by heat pressure and chemical activity in the earth |
mineralization | the processes whereby living material is replaced with minerals |
mold | mold the impression of an organism left behind in the rock |
paleontology | the study of life in the past |
paleontologists | people who study fossils and other types of evidence to learn about life in the past |
plate tectonics | the concept that explains the movement of the earths crustal plates sea floor spreading and number of other geological process of the earth's surface |
rock cycle | the process through which one type of rock igneous sedimentary or metamorphic is converted into another |
scavenger | an organism that feeds on dead orgainsms |
sedimentary rock | rock that is formed when layers of small particles sediment are compressed and cemented together |
trace fossils | evidence left by dead organisms such as burrows imprints coprolites or foot prints |
uplift | the processes that causes part of the earths crust to rise above surrounding ares this can cause layers of rock to become exposed at the surface |