the body usees the nose to get the oxegen then the lungs separate what the body can or cant use anything the body cant use we exhale
A penguin is a flightless bird it use lungs for in take of Oxygen in its body.
lungs
The air carries oxygen to your body when it is inhaled into your lungs.The blood carries oxygen through you body to the vcells that use it as part of their metabolism.
lungs they do have lungs they come up to breath
ALL of the the organs in the human body need an oxygen supply. This even includes the organs responsible for delivering oxygen to the rest of the body: the heart and lungs. Every organ requires oxygen. All that can be said in this case is that some organs use/need more oxygen than others. For instance, the brain needs/uses more oxygen than the spleen.
eye
The brain, of course.
so you can breathe
You Have to Use Oxygen.
In the mitochondria of your cells.
liver
Mammals use lungs to collect oxygen from the air, fish use gills to collect oxygen from the water.