Final answer:
True. The radii of individual bronchioles are low, but their total cross-sectional area is high, resulting in low resistance in the conducting zone.
Step-by-step explanation:
True. The radii of individual bronchioles are low, but their total cross-sectional area is high. This results in an overall low resistance in the conducting zone of the respiratory system. The low resistance allows for efficient airflow and distribution of air in the lungs.