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From an evolutionary perspective how are a common ancestor and a MRCA different Two organisms...

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From an evolutionary perspective how are a common ancestor and a MRCA different Two organisms that share a common ancestor are more closely related to each other that two organisms that share a MRCA If traced back far enough all life on Earth shares a common ancestor But of two organisms share a MRCA they are sister taxa and are clos related to each other Phylogenetic trees are based on shared ancestral traits so there is no distinct difference between a common ancestor and a MRCA O The MRCA shows relatedness between two organisms but is not useful when building a phylogenetic tree

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