. A bronchiole differs from tertiary (and smaller) bronchi in that it: A. has cartilage in its wall (& bronchi do not) B. does not have cartilage in its wall (& bronchi do) C. has smooth muscle in its wall (& bronchi do not) D. does not have smooth muscle in its wall (& bronchi do)
Option B. Bronchioles differs from tertiary bronchi is that bronchioles does not have cartilage in its wall.
