Depending on an organism's habitat and metabolic needs, the form of the respiratory organ varies significantly: Respiratory Organ‐on‐a‐Chip for Disease Modeling
: Millions of tiny structures (like alveoli in humans or filaments in fish) maximize the area available for gas to cross into the blood. respiratory organ
). While humans rely on lungs, the animal kingdom features a wide variety of respiratory systems adapted to diverse environments, from the deep ocean to high altitudes. Primary Features of Respiratory Organs Depending on an organism's habitat and metabolic needs,