Question

Dogs have a reduced nonfunctional digit on their paws known as a dewclaw. What is this an example of?
A. analogous structure
B. homologous structure
C. vestigial structure
D. mutated structure

Answer 1

c)vestigial structure...

Answer 2

Dogs having a reduced nonfunctional digit on their paws known as a dewclaw is an example of vestigial structure.

The reason is because the vestigial structure is a type of structure which tend to lost the most of its ancestral function.

Therefore, the nonfunctional digit here the dewclaw is considered as vestigial structure.

These are supposed to perform important function in the past in the organism.