Preserved remains or traces of organisms that lived in the past are known as what?
skulls
archives
deposits
fossils
Fossils are preserved remains or traces of organisms that lived in the past. Most preserved remains are hard parts, such as teeth, bones, or shells. Examples of these kinds of fossils are pictured in Figure below . Preserved traces can include footprints, burrows, or even wastes. Examples of trace fossils are also shown in Figure below .