How does the respiratory system transport molecules??

Pls help it’s due in like 15 minutes

Gas exchange during respiration occurs primarily through diffusion. Diffusion is a process in which transport is driven by a concentration gradient. Gas molecules move from a region of high concentration to a region of low concentration.

Explanation:

Brainliest Plz?

it's anything that aren't producers and consumers.

explanation:

you've got to be clear on what "this" is

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah