Does the movement inside a box which is completely closed, alter its weight?

Question

Consider a air-tight box which has insects(100000 of them) inside it. The box without insects weigh 100 kgs. (say). The box considered i.e the box with insects inside it weigh 200 kgs.(say). Now, if all the insects inside the box starts flying, does the weight of the box (i.e. 200 kgs) change?
Note: Consider that the box is weighed after a considerable amount of time with the insects flying inside the box.

Answer 1

No, it doesn't change. The air inside the box has to support the weight of the insects and the 'bottom' of the box has to support the air inside the box.

Doug