Two different monophyletic taxa are termed _____ if they share common ancestry with each other more recently than either one does with another taxa.
A)outgroups
B)sister groups
C)sibling species
D)paraphyletic

Question

Quizplus · Accepted Answer

Sister groups are two distinct monophyletic taxa that are each other's closest relative and share a common ancestor more recently with each other than with any other taxa in the same clade. This relationship is based on molecular, morphological, or other evidence. For example, humans and chimpanzees are sister groups within the family Hominidae, and they diverged from a common ancestor about 6-7 million years ago.

Two Different Monophyletic Taxa Are Termed _____ If They Share