Question

the little air sacs at the very end of the bronchioles are called: (1 point) cilia epiglottis alveoli pleura

Explanation:

In the respiratory system, the bronchioles end in tiny air - sacs. Cilia are hair - like structures for moving mucus. The epiglottis is a flap that prevents food from entering the trachea. The pleura is the membrane around the lungs. Alveoli are the tiny air - sac - like structures at the end of bronchioles where gas exchange occurs.

Answer:

C. alveoli