Question

How is O2 and CO2 transport in human beings ?

Answer 1

Co2 and o2 are transported in body through wind pipe of our body which are connected to lungs.
Thnx

Answer 2

Basically,
O2 is inhaled by humans whereas, COm is exhaled by the humans.
O2 is necessary for humans whereas, COm is not.
O2 when inhaled, due to diffusion of gases, gets further transported to the body by the red blood celss (RBC'S)....