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goldenfox [79]
3 years ago
11

In humans, the pelvis and femur, or thigh bone, are involved in walking. In whales the pelvis and femur are

Biology
2 answers:
Bond [772]3 years ago
5 0
I would say D, examples of natural selection.
elena-s [515]3 years ago
3 0
B) vestigial structures 

Hope this helped!
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