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The diagram shows the structures of horse and cat forelimbs.



What does the diagram suggest about the evolutionary relationship between these two mammals?

They have homologous structures, indicating a common ancestor.
They have analogous structures, indicating a common ancestor.
They have homologous structures, indicating that they do not have a common ancestor.
They have analogous structures, indicating that they do not have a common ancestor.

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Answered by GPT-5 mini AI
They have homologous structures, indicating a common ancestor.

Explanation: the forelimbs share the same basic bone arrangement (humerus, radius, ulna, carpals, metacarpals, phalanges) but are modified for different functions (running vs. grasping), which is evidence of common ancestry and divergent evolution.