Blood
Food moves through the digestive tract.
The respiratory system brings oxygen into the body and the circulatory system, specifically the cardiovascular system, moves the oxygen around the body via the bloodstream.
The respiratory system is the organ system that moves air into and out of your body.
Blood cells
Transportation system
No, a stream is not a living thing. It is a body of flowing water that moves continuously over the Earth's surface.
An object that orbits around another - is called a satellite.
Um. All blood moves around your body. That is like asking, what part of the water washes the most of my car.
the respiratory system
Sure. It might be. I would have to know what A was and additional to answer the question correctly.
The litle thing you move around on a video game controller. It's a little stick that moves around in a circle. :)
an orbit