Closed (I think. All vertebrates I know of have a closed system)
They have open circulatory system.
No. All vertebrates have a closed circulatory system. Arthropods and molluskshave an open circulatory system.
closed
They have an open-circulatory system. They do not have ventricles to carry through blood. Most mollusks have an open-circulatory system.
like other cordates except urocortates, lancelet have closed-circulatory system.
Amphibians have closed circulatory system Closed
closed circulatory system
Platypuses have a closed circulatory system.
They have open circulatory system.
They have a closed circulatory system.
No, they have open circulatory system.
No, open circulatory system
closed circulatory system
no
squids have closed closed circulatory systems
The grasshopper has an open Circulatory system.
open circulatory systems