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GS Module 7
Apologia General Science Module 7
Question | Answer |
---|---|
Fossil | The preserved remains of a once-living organism |
Mold | In paleontology, the impression formed when an organism is surrounded by rock before it decomposes. |
Cast | In paleontology, the shape formed when sediments or magma fill a mold. |
Petrifaction | The conversion of organic material into rock. |
Carbonization | The process by which an organism's remains are converted to a filmy residue that leaves a flattened "drawing" of the organism in the rock. |
Resin | A thick, slowly flowing liquid produced by plants that can harden into a solid. |
Fossil record | The sum total of all discovered fossils. |
Extinct | A term applied to a species that was once living but now is not. |
Trilobites | Creatures that once lived in water. |
Placoderms | Strange-looking fish that are assumed to be extinct. |