A life process common to both plants and animals is called (1) respiration. The process helps get air in and out of the (2) lungs. The air we breathe goes through (3) nose, (4) trachea, and (5) bronchi. When we breathe in or inhale, the (6) diaphragm contracts. Inhaling moves the diaphragm down and expands the (7) chest cavity. When you breathe out or exhale, the diaphragm muscle (8) relaxes. The diaphragm and ribs return to their original place. The chest cavity returns to its original size. There is now (9) higher pressure and greater (10) air pressure inside the lungs. It pushes the air outside where there is lower air pressure.