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12 cards from this deck
Preserved remains/traces of organisms from millions of years ago
Embedded in rock layers
Absence of oxygen or moisture
Organic parts (teeth, shells, bones) are replaced by minerals forming rock-like structures
Teeth, shells, and bones
Preserved traces
Footprints, burrows, or rootlets
Evolution and history of life on Earth
Relationships between species
Most were soft-bodied and decayed completely
Geological processes like erosion, volcanic activity, and tectonic movements
By comparing anatomy changes across different time periods
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