Question

At the end of each bronchiole is an (1) air sac (2) pleura (3) bronchus (4) larynx

Answer 1

1) air sac

Step-by-step explanation:

The smallest branches are called bronchioles and at the end of these are your air sacs.

Answer 2

At the end of each bronchiole is an air sac (a) made from small clumps of alveoli.

Hope this helps.

- Danielle xo