10.4

• Evidence for evolution includes: Paleontology, Comparative Anatomy, Comparative Biochemistry
• Paleontology is the study of fossils
• Fossils of simpler organisms are found in older rocks, while more complex organisms are found in more recent rocks
• The sequence fossils are found in match the ecological links to each other
• Similarities between fossils show how closely related organisms evolve from the same common ancestor
• Fossils can help to investigate relationships between extinct and living organisms
• Homologous Structures are structures that appear superficially different in different organisms but have the same underlying structure
• Homologous structures show that different organisms have evolved from a common ancestor
• Slight changes in the molecules of different species help to identify evolutionary links