no they dont. They have a closed circulatory system because they are so long.
Nearly all mollusks have an open circularity system
A crocodile has a closed circulatory system just as a human does.
Open circulatory system.
yes, it has a open circulatory system, which is not contained within veins.
open circulatory systemclosed circulatory system.
No. All vertebrates have a closed circulatory system. Arthropods and molluskshave an open circulatory system.
Crayfish have an Open Circulatory system because they are Invertebrates.
They have open circulatory system.
grasshoppers, have an open circulatory system
a gasshopper has a open circulatory system ^.^
They have an open-circulatory system. They do not have ventricles to carry through blood. Most mollusks have an open-circulatory system.
no
scaly
The grasshopper has an open Circulatory system.
An open circulatory system.