i) Open
a) transports fluid conveyed in general body cavity, no blood vessels
b) Fluid flow under low pressure hence slow
c) Fluid is in direct contact with tissues
ii) Closed
a) Transport fluid conveyed in blood vessels, has blood vessels
b) Blood flows under high pressure hence faster
c) Blood is not in direct contact with tissues
johnmulu answered the question on May 3, 2017 at 09:39
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What is the function of contractile vacuoles of amoeba?
(Solved)
What is the function of contractile vacuoles of amoeba?
Date posted:
May 3, 2017
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Answers (1)
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a) Describe the condition known as varicose veins.(b) What is the role of blood platelets in the clotting process
(Solved)
a) Describe the condition known as varicose veins.
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Date posted:
May 3, 2017
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Answers (1)
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The diagram below shows blood circulation in a mammalian tissue.
(Solved)
The diagram below shows blood circulation in a mammalian tissue.
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Date posted:
May 3, 2017
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Answers (1)
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Explain three ways in which red blood cells are adapted to their function.
(Solved)
Red blood cells are adapted to their function. Explain three ways in which they are adapted to their function.
Date posted:
May 3, 2017
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Answers (1)
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Explain why it is not advisable to be in a poorly ventilated room with a burning charcoal stove
(Solved)
Explain why it is not advisable to be in a poorly ventilated room with a burning charcoal stove
Date posted:
May 3, 2017
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Answers (1)
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(Solved)
a) State three structural difference between arteries and veins in mammals.
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Date posted:
May 3, 2017
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Answers (1)
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a) Name the antigens that determine human blood groups
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(Solved)
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Date posted:
May 3, 2017
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Answers (1)
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(Solved)
a) Name one defect of circulatory system in humans
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Date posted:
May 3, 2017
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Answers (1)
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(Solved)
Why would carboxyhaemoglobin lead to death
Date posted:
May 3, 2017
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Answers (1)
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The diagram below shows a vertical section through a mammalian heart.
(Solved)
The diagram below shows a vertical section through a mammalian heart.
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Date posted:
May 3, 2017
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Answers (1)
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Date posted:
May 3, 2017
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Answers (1)
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(Solved)
In what form is oxygen transported from the lungs to the tissues?
Date posted:
May 3, 2017
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Answers (1)
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a) The type of circulatory system found in members of the class insecta is
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(Solved)
a) The type of circulatory system found in members of the class insecta is
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Date posted:
May 3, 2017
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Answers (1)
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A person whose blood group is AB requires a blood transfusion. Name the blood groups of the donors
(Solved)
A person whose blood group is AB requires a blood transfusion. Name the blood groups of the donors
Date posted:
May 3, 2017
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Answers (1)
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(Solved)
Why are people with blood group O universal donors?
Date posted:
May 3, 2017
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Answers (1)
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a) How may excessive bleeding results in death?
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c) How can low blood volume be brought back to normal?
(Solved)
a) How may excessive bleeding results in death?
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Date posted:
May 3, 2017
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Answers (1)
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(Solved)
Describe the path taken by carbon dioxide released from the tissue of an insect to the atmosphere.
Date posted:
May 3, 2017
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Answers (1)
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State two ways by which Acquired Immuno deficiency syndrome (AIDS) virus is transmitted.
(Solved)
State two ways by which Acquired Immuno deficiency syndrome (AIDS) virus is transmitted.
Date posted:
May 3, 2017
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Answers (1)
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The diagram below shows a transverse section of a plant organ.
(Solved)
The diagram below shows a transverse section of a plant organ.
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Date posted:
May 3, 2017
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Answers (1)
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Why are the plants able to accumulate most of their waste products for long?
(Solved)
Why are the plants able to accumulate most of their waste products for long?
Date posted:
May 3, 2017
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Answers (1)