If a hole is created in the chest wall, air could escape or be drawn in, or if bleeding develops within the chest, air and blood can accumulate in the pleural space. This would force the lung to:

It'd force the lungs to collapse.

Explanation:

The pleural space is the space between the lung and the pleura of the two lungs that is covered with a thin membrane and filled with fluid.

If air and blood accumulates within the pleural space, this would cause the lungs to collapse because of the pressure.

I hope this answer helps.

the answer to your question is a plant

the correct answer is:

a population changes in response to a change in the environment.