4 Questions
What is a fossil and what can fossils show?
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.
What types of fossils can be found, and how do they form?
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.
How do transitional forms, like Archaeopteryx and Seymouria, provide evidence for evolution?
Transitional forms like Archaeopteryx and Seymouria show links between different groups of organisms, in this case between reptiles & birds and reptiles & amphibians respectively.
How can the age of a fossil be determined?
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.
Test your knowledge on comparative anatomy and biochemistry in vertebrates. Explore the common developmental features among different species and understand the implications of biochemical similarities on evolutionary relationships.
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