Can buoyancy act between bodies in contact or not in contact??

The tubes transporting minerals and water upward are called ?

Anurse is in the dining room and overhears a new nurse tell a client with body dysmorphic disorder that she's much too thin and must eat more before she can go home. the client bursts into tears and runs out of the dining room. what is the best way for the nurse to address this situation?

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?