Answer:
Pulmonary veins
Explanation:
In the circulatory system, the heart is responsible for for pumping oxygenated blood throughout the body and deoxygenated blood to the heart.
Normally all veins carry deoxygenated blood. However the pulmonary vein is the only vein that carries oxygenated blood.
They carry oxygenated blood from the lungs to the heart.
However the Superior and inferior vena cava are responsible for delivering deoxygenated blood to the heart.
It has helped us by seeing what kind of things we can see with our eyes it also helps us by seeing mirco things like dirt
"Nucleus" (Genetic Material in it) <span>directs and controls a animal cell activities
Hope this helps!</span>
Explanation:
USE SOCRACTIC IT WOULD REALLY HELP