Question

Which of the following is an example of vestigial structure?

• A. Your knee cap
• B. Your tail bone
• C. Your ear pinna
• D. Sixth finger found in some human

Answer 1

Answer: (C)

Your ear pinna

A rudimentary structure in humans corresponding to a functional structure or organ in ancestral animals is called a vestigial structure. Vestigial structures are various cells, tissues, and organs in a body which no longer function in the same way the ancestral form of the trait functioned. A vestigial structure can arise due to a mutation in the genome. Ear pinna is an example of a vestigial structure.

So the correct answer is 'Your ear pinna'.