Which of the following is a vestigial organ?
Correct answer: D. Coccyx
- A. Teeth
- B. Nails
- C. Body hair
- D. Coccyx
Explanation
The correct answer is d) Coccyx. The coccyx is a vestigial structure in humans, whereas teeth, nails, and body hair are not vestigial and have important functions in the human body. Vestigial organs are structures that have lost their original function through the course of evolution.
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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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