Question

a.from the nose and mouth, oxygen travels to the bronchioles ,down to the trachea then to the alveoli.

Answer 1

Explanation:

When you inhale through your nose or mouth, air travels down the pharynx (back of the throat), passes through your larynx (voice box) and into your trachea (windpipe). Your trachea is divided into 2 air passages called bronchial tubes. One bronchial tube leads to the left lung, the other to the right lung