What are the advantages of physical exams according to verghese?

Foreign doctors have all kinds of different forms of training. But many are united by one common factor that seems to be operative especially in the Commonwealth countries — a great emphasis on the bedside exam and on clinical skills. In part, [this approach] was driven by the lack of ready access to all the kinds of sophisticated testing that we have now. But I think that kind of clinical training still serves me very well.

the answer would be roots! roots are the parts of the plant that are underground, and that's how they'd anchor the plant. the stem is above the sol, which doesn't with anchoring. hope this !