Which of the following represents a pair of homologous structures?
A) the wing of a bat and the scales of a fish
B) the wing of a bird and the front legs of a horse
C) the antennae of an insect and the eyes of a bird
D) the wing of a bat and the wing of a butterfly

Question

Quizplus · Accepted Answer

The wing of a bird and the front legs of a horse are homologous structures because they share a similar basic structure despite their different functions. Both the wing and the front leg contain bones that are arranged in a similar way and have similar joints. The wing is adapted for flight, while the front leg is adapted for weight-bearing, but they share a common ancestry. The other choices do not represent homologous structures because they either have different functions or do not share a common developmental or evolutionary origin.

Which of the Following Represents a Pair of Homologous Structures