In humans vestige of the tail is made up of four fused bones. This structure is known as
A
Sacrum
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B
Coccyx
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C
Sternum
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D
Centrum
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Solution
The correct option is B Coccyx
Human coccyx, a vestige of a mammalian tail, which has taken on a modified function, notably as an anchor point for the muscles that hold the anus in place. The human coccyx is normally composed of four rudimentary vertebrae fused into a single bone.