Air is breathed into the lungs through the windpipe called ... gasses occurs by a process called diffusion. Alveoli are tiny air sacs in the lungs where gas is exchanged during breathing.

Diffusion is ... some of the oxygen from the air has been absorbed into the body when it is breathed into the lungs. Oxygen is transported to all cells in the body through the following process ...

Scientists have elucidated how hydrogen and carbon monoxide is adsorbed into solids containing a crown-motif structure of ...