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Anatomical Evidence and Evolutionary Relationships
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Grade Level
Grade 7
7.53 Anatomical Evidence and Evolutionary Relationships
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Which comparison best shows why common ancestry cannot be based on function alone?
A
A bat wing and butterfly wing both allow flight, but their structures are built very differently.
B
A dog and fox both have fur.
C
A bat wing and human arm are different lengths.
D
A whale flipper and cat leg are used differently.
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