chicken
A fluid connective tissue knwon as Blood carries oxygen and food
Veins
oxygen and nutrients
The blood vessels do. These are not organs, it's where the blood travels through the body.
The major organ involved in external respiration is the lungs. External respiration is the process by which oxygen is taken in from the air and carbon dioxide is eliminated from the body through the lungs.
The circulatory system transports and delivers food and oxygen throughout the body.
Respiratory system
At the organ level, respiration involves the exchange of gases (oxygen and carbon dioxide) in the lungs. At the cellular level, respiration refers to the metabolic process where cells generate energy by breaking down nutrients with the help of oxygen. This cellular respiration occurs in the mitochondria and produces adenosine triphosphate (ATP) as energy currency for the cell.
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.
Respiration involves the lungs. The lungs inflate with air, and this allows oxygen into the lungs. The windpipe and mouth and nose are also involved in respiration.
the (circulatory) respiratory system (blood flow carries oxygen)
The respiratory system obtains the oxygen, the cirrculatory system carries it to different parts in the body.