The circulatory system, like the water system, continually reuses the same materials.
The human circulatory system moves blood through the body similar to the hydraulic system which moves liquid water.
Their circulartion system is very similar to humans (closed circulatory system)
blood circulatory system is similar to an electric circuit
No oysters do not have a closed circulatory system. They have something known as a open circulatory system. They are similar to that of fish. They have something similar to that of the gills in fish so that they are able to function in the aquatic environment. The closed circulatory systems, are usually in the terrestrial animals such as mammals, birds etc.
Tigers are mammals and so their circulatory system is very similar to that of humans.
circulatory system
All creatures have circulatory systems
False
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Poriferans do not have distinct circulatory system. Instead water flow system support all these functions like circulatory, respiratory, excretory etc.
The Circulatory system is a busy system because it can never stop. Your circulatory system is what pumps your blood and gives your cells food water and oxygen and takes waste away from your cells. If your circulatory system ever stopped then you would die.