All vertebrates have closed circulatory systems, meaning that the blood never travels outside of a system of veins, arteries and capillaries.
Closed hydrovascular for echinoderms, open haemolymphatic for arthropods. ^^
Amphibians have closed circulatory system Closed
closed circulatory system (double circulatory system)
Yes it has a closed circulatory system
closed circulatory system
Sea otters have a closed circulatory system.
Platypuses have a closed circulatory system.
closed circulatory system.
Brown bear have a close circulation system
closed circulatory system
Worms have a closed circulatory system because they inherited it from their ancestors.
A double closed circulatory system.