Refer to the list of vestigial structures in humans below (Table 1). Suggest a possible original function for each structure. Table 1 Structure | Probable Function Appendix | Muscles that move ear pinna | Muscles that make hair stand up | Wisdom teeth | Analysis and Interpretations 1. Explain why the homologous structures in Part I are evidence of evolutionary relationships. 2. Explain the evolutionary relationship between the fin of the fish and the flipper of a whale. 3. List two structures (not from table 1) that you think are vestigial and explain why.
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- **Appendix**: The appendix may have originally functioned as a part of the digestive system, helping to digest cellulose-rich plant material in the diets of our herbivorous ancestors. - **Muscles that move ear pinna**: These muscles likely helped our ancestors Show more…
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Why do scientists consider vestigial structures evidence for evolution?
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