Yes it does. Its only one big vein though. The vein is called Dorsal Blood vessal.
Yes it has a closed circulatory system
earthworms have a closed circulatory system
yes
Grasshoppers have an open circulatory system, and worms have a closed circulatory system. There you go. :)
The earthworm like many more complex organisms has a closed circulatory system, meaning that its blood is confined to blood vessels and its blood is recirculated so it gets maximum use
an earthworm has a closed circulatory system ........ I've searched it :)
Earthworms have a closed circulatory system. Blood is pumped throughout its body by ringed blood vessels. An open circulatory system is not contained in vessels. In a closed circulatory system oxygen is carried in blood! hope this helps=)
Amphibians have closed circulatory system Closed
The first animal phylum to have a circulatory system was the Annelida phylum, specifically the earthworm. Annelids have a closed circulatory system composed of blood vessels that transport nutrients and oxygen throughout the body.
closed circulatory system (double circulatory system)
closed circulatory system
Sea otters have a closed circulatory system.