Earthworms have a closed circulatory system. This means that their blood is contained within vessels as it circulates throughout the body, allowing for more efficient transport of nutrients and oxygen. The blood is pumped by a series of muscular structures called aortic arches, which act like hearts. This system enables earthworms to maintain a more regulated flow of blood compared to open circulatory systems.
closed circulatory system
Closed. It also has a water-vascular system. :)
Ok
Brown bear have a close circulation system
earthworms have a closed circulatory system
it is close so then the blood can float in it nice and easy
Earthworms
fishes do have parallel circulation
closed circulatory system
earthworms have a closed circulatory system
Closed circulation is a phrase that the person asking this question doesn't know how to use in a sentence
A Closed Circulatory system-Is a blood circulation system in which blood moves through the body in closed vessels. In the closed circulatory system, the blood is confined to vessels. The heart pumps blood to vessels through smaller vessels which go to the organs. This system has a more efficient way of transporting blood then an open circulatory system. Some animals that have this systems include earthworms, squids, octopus, and all vertebrates, like humans.