Air flow patterns facilitate efficient gas exchangeBirds
The respiratory system of birds facilitates efficient exchange of carbon dioxide and oxygen via continuous unidirectional airflow and air sacs
Turrets ventilate nestleaf-cutting ant
Nests of leaf-cutting ants are self-ventilation thanks to two different types of turrets that take advantage of wind.
Guard cells regulate gas and moisture exchangeplants
Stomatal pores in plants regulate the amount of water and solutes within them by opening and closing their guard cells using osmotic pressure.
Mound facilitates gas exchangemound-building termites
The structure of above-ground macrotermite mounds facilitates gas exchange in the below-ground nest using internal air currents driven by solar heat.