The passage that directs air to the lungs is called

The correct answer is the pharynx, it is also called the throat, here is the definition of pharynx :the membrane-lined cavity behind the nose and mouth, connecting them to the esophagus.

Cell division is important to single celled organisms because it allows the cells to reproduce. through cell division, cells make exact copies of themselves. when single celled organisms go through cell division, they make exact copies of themselves which is how they reproduce.