Final answer:
Vestigial structures like the dewclaw in dogs are remnants of functional structures from past ancestors that serve no apparent function.
Explanation:
Vestigial structures are physical structures in organisms that have no apparent function and appear to be from a functional structure in a distant ancestor. The dewclaw of dogs, which is a reduced nonfunctional digit on their paws, is an example of a vestigial structure as it serves no clear purpose in modern dogs.
Learn more about Vestigial Structures here:
https://brainly.com/question/29208010
