Any Two Groups of Organisms Will Have

Question

Any two groups of organisms will have
A)2 most recent common ancestors.
B)no more than 4 most recent common ancestors.
C)only 1 most recent common ancestor.
D)as many as 16 most recent common ancestors.

Accepted Answer

Any two groups of organisms will have only 1 most recent common ancestor. This is because every species has a unique evolutionary history and can only have one most recent common ancestor with another species. However, if the groups are more distantly related, they may have multiple common ancestors further back in time.