The __________ of concrete makes it a very effective fire-resistive material

Which portion of the pulmonary system will be affected by the inhalation of low–water solubility gases such as hydrogen chloride and phosgene?

a. Distal airways and alveoli b. Pulmonary vascular bed c. Upper airway d. Pulmonary lymphatic system

When an organ pushes through a wall that contains it, a(n) ________ develops.

Fill in the blank(s) with the appropriate word(s).