Q: What is the tail bone an example of?


Read this paragraph and choose the correct option from the provided answers:

Some of the most interesting evidence for evolution comes from vestigial structures . These are body parts that are no longer used but are still present in modern organisms. Examples in humans include tail bones and the appendix.

 Choices:

- invertebrate structure

- parasitic structure

- primordial structure

- vestigial structure


A:
vestigial structure