differentiate open and closed type of circulation
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11th
Biology
Body Fluids and Circulation
Circulatory Pathways
Give the difference between...
BIOLOGY
Give the difference between open and closed system of circulation.
MEDIUM
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ANSWER
Open system of circulation Closed system of circulation
1 It is present in lower organisms, eg., cockroach. It is present in higher organisms, eg., human.
2 In this system blood flows through open spaces thus, blood is in direct contact with tissue fluids. In this system blood flows through closed system of blood vessels thus, blood is in indirect contact with tissue fluids.
3 In this system, blood pressure is low hence, this system is less active than closed system of circulation.
In this system, blood pressure is high hence, this system is more active than open system
Answer:
CLOSED TYPE:
This system has the presence of vessels that conduct blood throughout the body. When blood or any other body fluid flows throughout the body through blood vessels (arteries, veins and capillaries then type of circulation is called closed type of circulatory system.EXAMPLE:HUMANS.
OPEN TYPE:
In the open circulation, the blood is not enclosed in the blood vessels and is pumped into a cavity called hemocoel. On the contrary, in the closed circulation, the blood is pumped through the vessels separate from the interstitial fluid of the body.EXAMPLE:LEECH
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