A taxon is monophyletic 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 monophyletic taxon includes the most recent common ancestor of all members of the group and all of its descendants. This means that all members of the taxon share a common ancestor and are descended from that ancestor, without any other groups being included. This is also known as a clade or a natural group.

A Taxon Is Monophyletic If It