Diagram (A) depicts limbs that evolved from the front limbs of a common ancestor whose bones resembled those of an ancient fish. If these animals had no recent common ancestor, they would be unlikely to share so many common structures. Similarly,
a bird’s wing and a horse’s front limb have similar structures and
development, but different functions.
Diagram (B) depicts the wings of a butterfly and the wings of a bat. Although they have
similar functions, they don’t have similar bone structures. (15.1)
According to the diagrams provided and based on the theory of evolution as we
understand it today, which of the following statements is the most likely conclusion?
A. Figure (A) represents Analogous Structures and figure (B) represent Homologous
structures.
B. Figure (A) represents Vestigial Structures and figure (B) represents divergent
evolution
C. Both Figures A & B represent examples of vestigial structures.
D. Figure (B) represents Analogous Structures and figures (A) represent Homologous
structures.