Figure 20.1
-Which extinct species should be the best candidate to serve as the outgroup for the clade whose common ancestor occurs at position 2 in Figure 20.1?

Question

Quizplus · Accepted Answer

The outgroup should be the most distantly related species to the clade, so it should be the species that is not closely related to any of the species in the clade. In this case, species A is the most distantly related species to the clade, so it is the best candidate to serve as the outgroup.

Figure 20.1 -Which Extinct Species Should Be the Best Candidate to Serve