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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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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:)


How many types of circulatory systems do you have?

There are two main types of circulatory systems:1. Open2. ClosedIn an open circulatory system, blood mixes with internal organs directly. Organisms with this type of system do not have a true heart or capillaries. Instead of a true heart, there are blood vessels that act as pumps to force the blood along. Instead of capillaries, blood vessels join directly with open sinuses.In a closed circulatory system, blood is pumped through a closed system of arteries, veins, and capillaries.(:


Do arthropods have a open circulatory system?

Yes, most arthropods have an open circulatory system, which means that their blood, called hemolymph, directly bathes their tissues. This system is less efficient at transporting oxygen compared to closed circulatory systems found in vertebrates.


What features do open and closed circulatory systems have in common?

In closed circulatory systems, the blood flows from the heart, to the arteries to the capillaries, to the veins and back. In the open circulatory system, the blood flows into the tissues from the arteries but not into capillaries. It does return back to the heart again by veins. But it is open in the sense that the blood it is free in the tissues.


Compare the circulatory system of each of the three major classes of mollusks?

In cephalopods like octopuses, the circulatory system is closed, with blood contained in vessels. Bivalves like clams have an open circulatory system where blood is pumped into a hemocoel. Gastropods, such as snails, have a mix of closed and open circulatory systems, with a heart that pumps blood through vessels but also into spaces around organs.

Related Questions

Is the circulatory system open or closed?

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


Do arthropods have open or closed circulatory system?

open circulatory systems


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.


Do rabbits have an open or closed circulatory system?

Rabbits have a closed circulatory system, meaning that their blood flows through a series of vessels and the heart pumps it continuously around the body. This system allows for efficient transport of oxygen, nutrients, and waste products throughout the rabbit's body.


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:)


How are open and closed systems different?

open circulatory systems have sinuses and only have blood vessels


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.


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.


Do birds have open or closed circulatory systems?

Birds have closed circulatory systems, where blood flows within vessels and does not come in direct contact with the surrounding tissues. This system allows for efficient circulation and delivery of oxygen and nutrients throughout the bird's body.


Why is closed circulatory system is more efficient than open circulatory system?

not all open circulatory systems transport oxygen. Insects have no oxygen in their blood


Do humans have an opened or closed circulatory system?

Humans have a closed circulatory system, in which blood is pumped by the heart through dedicated vessels, where it stays contained, as opposed to an open circulatory system (usually found in invertebrates) where blood is pumped out of the heart and vessels.


Do rats have a open circulatory?

no, a university proffessor would say that a rat is not included in the animals that have circulatory systems at all and they sometimes go 69 with the same sex rats