Welcome to your Human Physiology
1.
Which part of respiratory tract lacks cartilage?
2.
Which gas is utilised by organisms to release energy?
3.
Exchange of gases in sponges occurs through
4.
Cutaneous respiration is seen in
5.
Which respiratory organ is used by fishes?
6.
Respiratory surface must be
7.
Which vertebrates respire only through lungs?
8.
Breathing is best defined as
9.
In insects, respiration occurs through
10.
Which structure prevents food from entering trachea?
