Biology
Evolution
The wing of a bat, the flipper of a whale and the forelimb of a horse appear very different, but they have the same basic bone pattern. They are examples of what structure?

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Jill W
The wing of a bat, the flipper of a whale and the forelimb of a horse appear very different, but they have the same basic bone pattern. They are examples of what structure?
Balanced Polymorphism