What determines whether a respiratory system structure is part of the respiratory zone, and not part of the conducting zone?

Passive transport of the bag, quavo once said "you get the bag and fumble it, i get the bag, flip it, and tumble it". but the answer could either be quavo, offset, or, takeoff.

A. it splits a cell into two new daughter cells.

What you get when you cross cinderella with a barber will shock you, since cinderella is one of the most beautiful princess in disney characters. she was being idolized by a lot of female kids all around the world. her story inspired a lot of people which makes her character more popular and being loved by many children. 

No answer , no answer, no answer, no answer, and no answer