air breathing
Inhaling atmospheric gases
Air breathing describes organisms or engines that take in atmospheric air for respiration or combustion.
An air-breathing animal like a whale must surface periodically despite living in water.
An air-breathing engine, unlike a rocket, draws oxygen from the surrounding atmosphere rather than carrying its own oxidizer: The missile uses an air-breathing propulsion system.
- respirationGas exchange in organisms
- lungsRespiratory chest organs
- lung capacityBreath volume measurement
- inhaleDraw air in
- exhaleExpel breath outward
oxygen · fresh air · gills · amphibian · mammal · surface · gasp · terrestrial · snorkel · dolphin · whale · emerge · nostrils · trachea · ventilation · lungfish · reptile · vertebrate
- fish featuresgills, fins, scales, swim bladder, streamlined body