Comparative Anatomy and Biochemistry Quiz

A fossil is the preserved remains or traces of an organism that is no longer living. Fossils can show that organisms have appeared and disappeared, changed over time, extinction of species, transitional forms, ancient climate and environmental conditions, and the development of life from simple to complex.

Different types of fossils include imprints, molds, casts, petrifications, amber, frozen specimens, and traces. They form through processes like burial, mineral replacement, and natural preservation.

Transitional forms like Archaeopteryx and Seymouria show links between different groups of organisms, in this case between reptiles & birds and reptiles & amphibians respectively.

<p>The age of a fossil can be determined by looking at the depth of its placement in the rock layers, where lower layers are typically older than upper layers.</p> Signup and view all the answers