fossils quiz Flashcards
(44 cards)
Abiotic/Physical Factors
Non-living factors such as erosion, wind and sun exposure.
Benthic
Living at the bottom of the ocean or on the ocean floor
Biological/Biotic Factors
Living factors such as decomposers, scavengers and predators.
Coprolite
Fossilized feces.
Cast
Casts are formed when sediment leaks into a mold and hardens to form a copy of the original.
Body fossil
Body parts of organisms that become fossils, such as bones, teeth, skin, leaves, tree trunks.
Compression
Fossils formed when an organism is flattened (compressed), leaving a dark stain in the rock.
Decomposer
An organism that breaks down the tissue and/or structures of dead organisms.
Erosion
Weathering or wearing away of rock and earth (and any fossils they contain) caused by wind, sun, and/or water.
Fossil
The natural remains or traces of past life. Something is considered to be a fossil if it is at least 10,000 years old.
Groundwater
Water found underground us a result of rainfall, ice and snow melt, submerged rivers, lakes, and springs
Fossil record
ALL of the fossils that have existed throughout life’s history, whether they have been found or not.
Geologic maps
Geological maps help paleontologists find the right rocks for their question.
Ichnology
The study of trace fossils.
Igneous rock
Type of rock produced when molten magma (lava) cools and solidifies.
Impression
Fossilized prints or marks made by a living thing. Leaf prints, skin prints and footprints and good example.
Inorganic
Not containing carbon. Not from living things. Ex., mineral.
Intertidal
The coastal zone between the low and high tide mark where the waves impact the land
Macroscopic
Objects or organisms that are large enough to be seen with the naked eye
Metamorphic rock
Rocks produced when any type of rock is changed by heat, pressure, and chemical activity in the Earth.
Microscopic
Objects or organisms that are too small to be seen with the naked eye.
Mineralization
The process whereby living material is replaced with minerals.
Mold
The impression of an organism left behind in the rock.
Organic
Containing carbon. Also refers to characteristic features of living things.