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they have a closed circulatory sytsem:]yur welcome.....

Sorry, this answer is very incorrect. A closed circulatory system means that the blood is contained within blood vessels, which the heart is able to pump/move through the tissues for very efficient gas exchange. Sponges DO NOT have this. In fact sponges do not even technically have a circulatory system at all, gas exchange is achieved by diffusion from the outer cells. So this means that sponges do not have an open or a closed circulatory system, because they don't have one at all.

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14y ago
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13y ago

Closed circulatory system like humans as both human and cats are mammals.

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12y ago

closed

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Q: Do humans have open or closed circulatory system's?
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Do rabbits have an open or closed circulatory system?

closed. Open circulatory systems are common in athropods, such as scorpions and insects, but not of mammals. They are when the body lacks blood vessels but has blood throughout the entire cavity of the body. Mammals have closed circulatory systems, as they contain blood vessels.


Is the circulatory system open or closed?

Some dont have any at all but most have closed cirrculatory systems.


Is your circulatory system open or closed?

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:)


Do arthropods have open or closed circulatory system?

open circulatory systems


Do birds have open or closed circulatory systems?

All bird species have different circulatory systems, for the most part the smaller species have an open system, while larger birds have a closed system.


What is the difference between an open open and closed circulatory system?

Closed circulatory systems have blood that does not flow in defined blood vessels. Examples are insects and how their organs are bathed continually in "blood". Open circulatory systems have blood that flows in vessels. Humans have this system as blood flows in veins, arteries and capillaries.


What type of circulatory system do spiders have?

squids have closed closed circulatory systems


How are open and closed systems different?

open circulatory systems have sinuses and only have blood vessels


Example of animals with closed circulatory system?

Mammals including humans have closed circulatory systems, as do most vertebrates. Some invetebrates also have closed systems. Examples of open circulatory systems are most arthropods, including molluscs and crustaceans and insects.


What is the close circulatory system and open circulatory system?

Closed circulatory systems have blood that does not flow in defined blood vessels. Examples are insects and how their organs are bathed continually in "blood". Open circulatory systems have blood that flows in vessels. Humans have this system as blood flows in veins, arteries and capillaries.


Do tigers have a open or closed circulatory system?

Tigers are mammals and so their circulatory system is very similar to that of humans.


What is the difference between open and close circulatory system?

Closed circulatory systems have blood that does not flow in defined blood vessels. Examples are insects and how their organs are bathed continually in "blood". Open circulatory systems have blood that flows in vessels. Humans have this system as blood flows in veins, arteries and capillaries.