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.
OPEN
Amphibians have closed circulatory system Closed
closed circulatory system
Platypuses have a closed circulatory system.
No, they have open circulatory system.
No, open circulatory system
They have a closed circulatory system.
closed circulatory system
The grasshopper has an open Circulatory system.
open circulatory systems
Closed
Closed