A humans circulatory system is closed. Large creatures tend to have a closed system, while smaller creatures like insects and crustaceans have open circulatory systems. Closed is when there are vessels and the blood stays there. Open is when blood floats around the body. Hope it helps:)
The cardiovascular systems of humans are closed, meaning that the blood never leaves the network of blood vessels.
it is a closed system
A bird has a closed circulatory 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, open circulatory system
No, they have open circulatory system.
closed circulatory system
no
squids have closed closed circulatory systems
The grasshopper has an open Circulatory system.
open circulatory systems