Q. Cockroach cannot survive in the water because its respiratory organ is ____:
Answer:
Trachea
Notes: In cockroach, an arthropod belonging to class Insecta, the respiratory system includes openings called spiracles present in abdominal surface. These opening are further connected with trachea, trachioles and bronchioles to direct allow the atmospheric air to interact with body cells for gaseous exchange. Therefore, cockroach with its abdomen immersed in water die of oxygen starvation.