Complete the following sentences

cbse
breathing

#1

Complete the following sentences.
(i) Nasal chambers are separated from the oral cavity by…
(ii) A film of…lines the alveoli to lower the surface tension.
(iii) Sound is produced by vibration of…located in the…
(iv) Left lung has… lobes, while right lung has…lobes.


#2

(i) palate (ii) lecithin
(iii) vocal cords, larynx (iv) two, three