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Frogs have a double circulatory system, which means that circulation goes from the heart to the lungs (where it becomes oxygenated), then returns to the heart, then is pumped to the rest of the body (which takes the oxygen), and then returns to the heart. They have a closed circulatory system, which means that the blood travels through the body in vessels. Frogs have a three-chambered heart.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoCrabs have a open circulatory system. to read more on this click on the link bellow. You will need adobe reader http://www.globalheartbeat.org/pdf/Crab_physiology_version_2.pdf
Wiki User
∙ 14y agoEchinoderms do not have a circulatory system they have a hemel system
Wiki User
∙ 10y agoThey have closed ciculatory system
Wiki User
∙ 14y agoIt is an open one, hehehe :]
Wiki User
∙ 11y agoopen
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Is the Alaskan king crab's circulatory system open or closed?
OPEN
Do amphibians have an open circulatory system or a closed circulatory system?
Amphibians have closed circulatory system Closed
Do earthworms have a closed or open circulatory system?
closed circulatory system
Do platypuses have an open or closed circulatory system?
Platypuses have a closed circulatory system.
Does praying mantis have an open or closed circulatory system?
They have open circulatory system.
Do an octopus have an open circulatory system?
They have a closed circulatory system.
Does a slug have a closed circulatory system?
No, open circulatory system
Do snails have a closed circulatory system?
No, they have open circulatory system.
Is the human body a open or closed circulatory?
closed circulatory system
Open circulatory system to lymphatics to closed circulatory system is to blood circulatory system?
no
What type of circulatory system do spiders have?
squids have closed closed circulatory systems
Does a grass hopper have an open or closed circulatory system?
The grasshopper has an open Circulatory system.
