Among these which blood vessels contain valve ?
arteries
veins
capillaries
none of these
Which of the following components of blood protects us from diseases?
RBC
WBC
platelets
blood plasma
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Answered by
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Answer:
1) Unlike arteries, veins contain valves that ensure blood flows in only one direction.
2) White Blood Cells
Explanation:
White blood cells protect the body from infection. They are much fewer in number than red blood cells, accounting for about 1 percent of your blood.
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Answered by
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Answer:
your answer is c. capillaries
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