What do people mean with " no one can do everything but everyone can do something"? ?

Agraduate student wants to examine the effect of print media versus televised media on individuals’ position on several social issues. the superintendent of a local work release facility, a family friend, will allow the graduate student access to the prison population to her quickly accrue subjects. the student’s irb should: approve this project since the risk appears to be no > minimal. not approve this project because the prisoners are merely a population of convenience for the student. approve this project since the superintendent is the ultimate authority on what happens in his facility. approve this project but submit it for federal review.

The author says that in some town hall meetings several thousand citizens might. attend and vote. what would you do to make sure. a town hall meeting of that many people would run smoothly

Why did trump shut down the government?