Vestigial organs are structures that
Correct answer: D. have lost most or all of their original function in the course of evolution
- A. are equally useful in every species
- B. appear only in fossils
- C. function better than they once did
- D. have lost most or all of their original function in the course of evolution
Explanation
The human appendix, wisdom teeth and ear muscles persist as reduced remnants of structures that served our ancestors. Their existence is evidence of descent with modification, since a designer would have no reason to include them.
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About Concept of Evolution
Evolution is the heritable change in populations over generations, driven by mutation, recombination, natural selection, genetic drift and reproductive isolation. Questions examine variation, adaptation, survival and reproduction, speciation, fossil and anatomical evidence, and the difference between individual acclimatization and evolutionary change in a population.
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