A Phylogenetic Tree That Is "Rooted" Is One

question 76

Multiple Choice

A phylogenetic tree that is "rooted" is one

• A)that extends back to the origin of life on Earth.
• B)at whose base is located the common ancestor of all taxa depicted on that tree.
• C)that illustrates the rampant gene swapping that occurred early in life's history.
• D)that indicates our uncertainty about the evolutionary relationships of the taxa depicted on the tree.
• E)with very few branch points.

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