Some Animal Species Found in Caves Have Tiny, Nonfunctional Eyes

Question

Some animal species found in caves have tiny, nonfunctional eyes. These are best described as
A) mutations.
B) vestigial structures.
C) analogous structures.
D) homologous structures.

Accepted Answer

Vestigial structures are body parts that have lost their original function through evolution, like the tiny, nonfunctional eyes of cave-dwelling animals.