Question

Difference between gill and tracheal respiration

Answer 1

gill are for respiration in water it helps in respi ration of dissolved oxygen in water and trachae is for respiration in air molecules of oxygen in air

Answer 2

All arthropods molt and have an exoskeleton — two factors that, as we've just seen, limit the body size of terrestrial animals. Insects, however, got triple-whammied in this department because of the way they breathe. While crustaceans breathe via gills and spiders use gill-like structures called book lungs, insects employ a different system. They get oxygen through tubes called tracheae