Birds and insects both have wings, but we do not consider this similarity as evidence of relatedness because
A. the wings are not homologous structures with a common ancestral origin.
B. bird wings, but not insect wings, function on the physics principles of lift.
C. there is no fossil link between these groups.
D. birds and insects did not evolve in the same region or live at the same time period.
E. insect wings are vestigial.
Answer: A
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