The lungs of humans and rabbits are . . . . . . .

The vocal cords are attached to which of the following?

In a rabbit,the lungs are divided into how many lobes?

The nerve related with the diaphragm is:

The correct sequence of the following parts of the lower respiratory system is:
$I.$ Bronchi $\quad$ $II.$ Larynx
$III.$ Bronchioles $\quad$ $IV.$ Alveolus

The nasal cavity and the oral cavity are separated from each other by the: