The feathers of male goldfinches become brightly colored each spring. Which best describes why the color of the feathers changes each year?
a genetic mutation a learned behavior a behavioral adaptation a physical adaptation
Question: The feathers of male goldfinches become brightly colored each spring. Which best describes why the color of the feathers changes each year?
A. a genetic mutation
B. a learned behavior
C. a behavioral adaptation
D. a physical adaptation
Answer: