An inherited structure that has lost much of its original function is called a/an:

• A. analogous structure
• B. homologous structure
• C. vestigial structure
• D. adaptive trait

Answer: (C)

Verified step by step guidance

1. Understand the definitions of the given terms: An analogous structure refers to features in different species that have similar functions but evolved independently, not from a common ancestor.
2. A homologous structure refers to features that are similar in different species because they were inherited from a common ancestor, even if their functions differ.
3. An adaptive trait is a characteristic that increases an organism's fitness and is shaped by natural selection.
4. A vestigial structure is an inherited anatomical feature or behavior that has lost much or all of its original function through evolution.
5. Identify that the question asks for a structure that has lost much of its original function, which matches the definition of a vestigial structure.