It is believed that wild turkeys are descended from a peafowl-like, or peacock-like, ancestor. Look at the two photographs. The wild turkey is shown on the left, and the modern peacock is shown on the right.
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What genetic difference between the two animals is visible in the pictures?
a
The wild turkey lacks fanned feathers on its head.
b
The wild turkey lacks a noticeable tail.
c
The wild turkey exhibits no variation in color.
d
The wild turkey has feathers on its lower legs.