Section of the orchestra stands up?

Answer 1

The percussion sits at the back. Brass sit below the percussion and above the woodwind. Th strings sit below the woodwind and to the right ( in a conductors view) of the harps and the piano if a full orchestra is needed! That is the normal positions they would sit in.

Answer 2

It often stand alone as it is not considered to be a member of any one family of orchestral instruments. When an organ is employed in a classical piece of music, often times the organ pipes reside behind the orchestra with the console closer to the hall seating.

Answer 3

I am assuming who in the orchestra is not seated while playing. That would be the percussion section as well as the string bass players.

Answer 4

The conductor normally stands at the front of the orchestra