A taxon is paraphyletic if it
A) includes the most recent common ancestor of all members of the group and all of its descendants.
B) includes the most recent common ancestor of all members of the group and some, but not all, of its descendants.
C) does not include the most recent common ancestor of all members of the group.
D) excludes the most recent common ancestor of all members of the group.

Question

Quizplus · Accepted Answer

A paraphyletic taxon includes the most recent common ancestor of all members of the group and some, but not all, of its descendants. This means that some of the descendants of the common ancestor are excluded from the group, making it paraphyletic.

A Taxon Is Paraphyletic If It