Question

There are several compelling pieces of scientific evidence that support the occurrence of evolution. Answer the following question using the choices provided. The answer choices may be used once, more than once, or not at all.
This piece of evidence is an evolutionary remnant, representing an organ or structure that at one time may have been functional for the organism or its ancestors.

• A. Homologous structures
• B. DNA sequences
• C. Analogous structures
• D. Vestigial structures
• E. Biogeography

Answer 1

The correct option is D Vestigial structures

A. Homologous structures are the structures that have same basic structure but perform different functions.

B. DNA sequences are formed by the arrangement of four nucleotides, adenine, thymine, guanine and cytosine.

C. Analogous structures are the structures that have different basic structures but perform same functions.

D. Vestigial structures are the structures that once performed an important function in the organism's body but with the course of evolution, they became non functional.

E. Biogeography is the study of geographical distribution of life forms on the earth.

Hence, the piece of evidence as an evolutionary remnant, representing an organ or structure that at one time may have been functional for the organism or its ancestors is a vestigial structure.

So, the correct answer is 'Vestigial structures'.