The answer to this would be False.
Hi
I don't think they only have 4 responsibilities but let me answer 4.
1- Take care of their children(food,clothes,etc)
2- Make sure they have everything they need and want
3- What kind of friends they have
4- What kind of stuff going through their minds
So That's my 4 but another person can give another 4.
Sweet dream
You inhale when contracting muscles and exhale when finishing a rep.
No. Because they made of different region and all has its own work.
Because it is easier to have a chain of command established with the staff if only one person is the leader. Companies and corporations also save money in the practice of only having a single leader or "boss."
I don't know if that answer will exactly help. :)