Question

9 Write the name of the respiratory organ of the following -
a) Flateworm b) Bird c) Frog d) Cockroach​

Answer 1

Answer:

a) they respire through diffusion in their outer membrane

b) Birds take oxygen into their body tissues when they breathe in and when they breathe out

c) The frog has three respiratory surfaces on its body that it uses to exchange gas with the surroundings: the skin, in the lungs and on the lining of the mouth.

d) external valves called spiracles and transport the air directly to the cells via tubes called trachea