Evolutionary Evidence in Living Organisms
Explore the concept of evolution, including homologous and analogous structures, as well as vestigial examples, to understand how different organisms have developed and diversified over time.
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Presentation Transcript
Evidence Of Evolution Chapter 28
What is evolution? Evolution can be simply stated as Change over Time More elaborate: It is how different kinds of organisms are thought to have developed and diversified from earlier forms during earths history
B. Evidence from Living Things
Homologous Structures Skeletal structure of different organisms have: similar structure and embryological development different forms and function
Analogous Structures Similar external forms and similar function but different internal structures
Analogous Examples All have a external wing for flight, but the internal structure is not similar
Vestigial Structures Structures that were functional in an ancestral form but are no longer functional They are reduced forms that no longer serve a function
