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blood vessels
Annelids have a closed circulatory system.
The organs of the frog's circulatory system are the heart and blood vessels. The blood vessels include veins, arteries, and capillaries.
The frog's circulatory system, like that of humans, includes the heart and blood vessels. The blood vessels include arteries, veins, and capillaries.
The main organs of the circulatory system are the heart, blood vessels and blood. The blood vessels include arteries, veins, and capillaries.
There is only one major organ in circulatory system that is heart. Brain and lungs are not its parts they are parts of nervous and resperatory system. you may also see blood vessels as a part of circulatory system but its not an organ.
The organs of the circulatory system include the blood, blood vessels, and heart. The blood is an unusual organ in that it is a liquid.
The components of the circulatory system include the heart, blood, and blood vessels. The pulmonary circulation is also part of this complex system.
closed circulatory system and a series of hearts
The circulatory system consists of the heart and blood vessels.
The organs of the circulatory system include the heart, blood, and blood vessels. The heart is the pump that takes the oxygenated blood through the blood vessels to supply the cells with energy.
The circulatory system consists of the heart and blood vessels.