Which of the following statements are true about common ancestors? Check all of the boxes that apply.

A common ancestor is an ancestral species from which two or more species descended, so A is true. Sharing an ancestor means organisms are related, and species that share more ancestors are generally more closely related; therefore C and D are true. Common ancestry also provides evidence for evolution and the relatedness of life, making E true. B is false because a common ancestor can be an ancestral species shared by different species.

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