How does the respiratory system of aquatic arthropods differ from that of terrestrial mammals?
Aquatic arthropods use lungs, while terrestrial mammals use gills.
Aquatic arthropods use tracheal tubes, while terrestrial mammals use lungs.
Aquatic arthropods use gills, while terrestrial mammals use lungs.
Aquatic arthropods use cutaneous respiration, while terrestrial mammals use lungs.
Aquatic arthropods, such as crabs and lobsters, have specialized respiratory structures called gills, which are used for gas exchange. These structures allow for the diffusion of oxygen and carbon dioxide between the water and the arthropod's circulatory system. In contrast, terrestrial mammals, such as humans, use lungs for gas exchange, which involves the inhalation of air and the diffusion of oxygen and carbon dioxide between the air and the blood.
Option 3 is the correct answer.