Step away from Christina, apologize and ask her to talk about it. I mean that's not personally what I would do per say, but I'm sure that's the answer they're looking for
This actually depends on which level of education you are and what they are looking for. Most people though merely considers it a part of the Digestive System as the bile it stores is used during digestion.
I have seen however several people put it down as part of the bilary system or subsystem which responsible for the creation and distribution of bile.
Family history is the top risk factor for a person to get an Alzheimer's disease. This is because of heredity that a person cannot escape from. So it is important that a person must know the family history whether he or she can be a dominant carrier of this disease or not.