Closed
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