Respiratory Organs In Animals

One of the following animals does not use tracheae as the respiratory organs. This animal is:

Respiratory Organs in Different Organisms

Respiratory organs in a sea star are

Respiratory system - definition || Types OF Respiration || Various Respiratory Organs || Ideal Respiratory Surface || Human Respiratory system || Nasal Chamber

Respiration || Breathing Vs Respiration || Anaerobic And Aerobic Respiration || Respiratory Organs OF Different Animal Groups || Respiratory Passage Tracts OF Humans

Respiration And Breathing|Respiratory Pathway|Animals And Their Respiratory Organs|Human Respiration|Breathing Mechanism And Exchange Of Gases

Respiration And Breathing|Respiratory Pathway|Animals And Their Respiratory Organs|Human Respiration|Breathing Mechanism And Exchange Of Gases

Respiratory organs of silkworm are