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A bat wing, a primate arm, and the front leg of a cat all have similar bone structures: one bone attached at the shoulder, two bones in the forearm, a series of wrist bones, and digits.
Based on this evidence what conclusion can be drawn?
Cats, bats, and primates evolved in similar environmental conditions.
Cats, bats, and primates have common ancestor with the same bone configuration.
Gene flow has occurred between cats, bats, and primates.
Natural selection favored this bone configuration in a variety of animal groups.