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
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.
Even if insects have an open circulatory system, which is usually characterized by slow animals with low metabolic rates, their circulatory system does not participate in supplication of oxygen to the tissues and in the gas exchange process. That is handled by the independent tracheal system, the spiracles, which allows direct contact of cells with the air. With this, the oxygen demand can be supplied even with an open circulatory system.source: http://www.biology-questions-and-answers.com/the-circulatory-system.html
Tigers are mammals and so their circulatory system is very similar to that of humans.
A hemocoel is a body cavity in invertebrate animals that contains circulating body fluids, such as blood. It functions like a circulatory system, transporting nutrients and waste products throughout the organism's body.
Well I'm not sure but the fish would probably be less active because the circulation wouldn't be as good in an open circulatory system so it wouldn't be able to retrieve as much oxygen for its energy level and it would need to slow down.
open circulatory systems
grasshoppers, have an open circulatory system
open circulatory systemclosed circulatory system.
The grasshopper has an open 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.
Cockroaches do have circulatory systems, they are are open circulatory systems
An open circulatory system.
No, they have open circulatory system.
No, open circulatory system
they have an open circulatory system
They have a closed circulatory system.
yea its an open circulatory system