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What type of circulartory system is found in most mollusks?

open!


Do sharks have an open or closed circulatory system?

Brown bear have a close circulation system


Does a puffer fish have an open or closed circulatory system?

ya fish has a close type circulatory system it is used to teke a respirstion at the two side means it had two type of organ 1 arteries nd one vein.it had a two chambered heart.


Does oysters have a closed circulatory system?

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.


Is the circulatory system of a bony fish open or closed?

Closed, With a "Single loop" that pumps from the heart to the rest of the body, back to the heart and so on.


Is a burning candle an example of an open system or a closed system?

The light bulb is a closed system: no mass transfer.


Do earthworms have a closed or open circulartory system?

Because its blood moves through vessels, or tubes in the body. In the head of the worm two large vessels meet and form five pairs of hearts which pumps blood through the vessels.


Does a snake have an open circulatory system?

no they dont. They have a closed circulatory system because they are so long.


Is the water cycle open or closed system?

Closed System


Do fish go to sleep with eyes open or closed?

with the eyes closed


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