Question

the respiratory zone of the tracheobronchial tree includes which of the following? multiple choice primary bronchi tertiary bronchi trachea larynx alveoli

Explanation:

The respiratory zone is the site of gas - exchange in the respiratory system. The alveoli are the tiny air - sacs where oxygen and carbon dioxide are exchanged between the air and the blood. The primary bronchi, tertiary bronchi, trachea, and larynx are part of the conducting zone which transports air to the respiratory zone but do not participate in gas - exchange.

Answer:

E. Alveoli