Question

B) Stomata, lentcels
D) None of these
35) To present entry of food into the trachea, the opening is guarded by
A) epiglottis
C) Hard palate
B) Glottis
D) Soft palate
36) The narrowest and most numerous tubes of lungs are called
A Bronchus
C) Alveoli
B) Bronchioles
D) None of these
37) The diaphragm remains
in normal position.
A) Flattened
C) Perforated
B) Arched
D) Varies
38) Earthworms respire through
A Moist skin
C) Spiracles
B) Clitellum
D) Lungs
39) The actual site of gaseous exchange in respiratory system is
A) trachea
C) Alveoli
D) all of these
B) Bronchioles
40) Gills are for
A) Terrestrial respiration
C) Pulmonary respiration
B) Aquatic respiration
D) all of these​

Answer 1

Answer:

35) epiglottis.

36) bronchioles.

37) varies.

38) moist skin.

39) alveoli.

40) aquatic respiration.