Blood is a complex fluid that transports a variety of molecules around the body. It carries diatomic Oxygen and the nutrients essential for the organism to function, but it also carries the wastes produced by these same organs (Carbon Dioxide, nitrogenous wastes).
It also carries the many molecules associated with the immune system, and diffuses hormones throughout the organism.
Blood is a complex fluid that transports a variety of molecules around the body.It is particularly notable for its carrying of oxygen and essential nutrients. Click on the Play button to start the animation.