Question

~1. Name the structure that-
a) Supports the wall of the trachea and does not allow it to collapse
b) Separates thoracic cavity from abdominal cavity.
c) Helps in production of sound
d) Allows exchange of gases
e) Used for respiration by fish

Answer 1

a) C- shaped cartilaginous ring

b) Diaphragm

c) Vocal cord or Larynx

D) Alveoli in lungs

e) Gills

Answer 2

a) C shaped cartilagenous rings

b)Diaphragm

c)pharynx or voice box

d)Alveoli

e) Gills

Note the spelling also.