The blank pulls blank when the lungs inhale

The blank pulls air when the lungs inhale

Explanation:

Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs. sorry thats the best i can do

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;