the following diagram shows the forelimb (arm) of 4 different types of mammals. The bones may look different, but they are in the same relative arrangement. The colors in the diagram below show the various bones in mammal forelimbs.
1-2 senteces, explain how this similarity shared by all mammals provides evidence that mammals share a common ancestor.
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The similarity in the arrangement of bones in the forelimbs of mammals suggests that they all have a common ancestor with a similar skeletal structure. This homologous structure indicates a shared evolutionary history among mammals.
1 answer