alleryInsects breathe through
Afeathery gills along the abdomen
Ba single pair of lungs in the thorax
Ctracheal tubes piping air to tissues
Dmoist skin only, like an earthworm
Answer & Solution
Correct answer: C. tracheal tubes piping air to tissues
Insects have a tracheal system — air enters through spiracles and travels through branching tracheae and tracheoles directly to the tissues.
Gas exchange bypasses the blood entirely.
Fish have gills, amphibians use moist skin plus lungs, but insects rely on tracheae.
Keep practising Breathing and Exchange of Gases
Browse all Breathing and Exchange of Gases questions for AP Intermediate 1st Year, or explore more Biology topics.
Related questions
Which cartilaginous part of the airway is called the sound box?During swallowing, which flap covers the glottis to keep food out of the larynx?Frogs can respire through their moist skin. This is known as:Respiration using vascularised gills, as in most aquatic arthropods, is called what?Earthworms exchange respiratory gases mainly through which structure?Breathing bingoWhich is biggerHow each gas travels