The structures which are reduced during the course of evolution and have no apparent function are called:
Correct answer: B. Vestigial organs
- A. Regenerated organs
- B. Vestigial organs
- C. Saltatory organs
- D. Useless organs
Explanation
Vestigial organs are organs which are thought to be remnants of organs that once served some purpose but are now no longer functional or are of altered/reduced function. Examples of vestigial organs in humans include the appendix, tailbone (coccyx), and wisdom teeth.
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About Evolution
Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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