an earthworm has a closed circulatory system ........ I've searched it :)
Yes, a earthworm does have blue blood.
Earthworms have five paired aortic arches that function as primitive hearts, pumping blood throughout their segmented bodies. These arches contract in sequence to help circulate hemolymph (the worm's blood-like fluid) and distribute nutrients and oxygen to their cells.
Blood
The person will die if the blood does not circulate. Blood is necessary to supply food and oxygen to the body.
veins
Its white
red
This artery is called the dorsal aorta and it is a main artery leading from the heart. It divides and branches out to smaller arteries that ensure that all of the body is supplied with oxygen.
blood
Blood
red