List the respiratory organs of amphibians.

The respiratory system includes the respiratory tract, the respiratory organs and air sacs. What type respiration is seen in pigeon ?

The respiratory system includes the respiratory tract, the respiratory organs and air sacs. What are the functions of air sacs ?

The respiratory system includes the respiratory tract, the respiratory organs and air sacs. How many air sacs are present in pigeon. Name them ?

Trachea are the respiratory organ of Annelida.

What are the respiratory organs of arthropods?

Name the respiratory organs of flatworm,earthworm, fish, prawn, cockroach and cat.

The respiratory organs of cockroach are ......

What is the respiratory zone of respiratory system?