With reference to the blood in a normal person which one of the following statements is correct ........

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With reference to the blood in a normal person, which one of the following statements is correct?

Compared to arteries, veins are less numerous and hold less of the body’s blood at a given time

Blood cells constitute about 70 percent of the total volume of the blood

White blood cells (WBC) are made by lymph nodes only

The blood has more platelets than WBC

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Explanation:

4th option is correct i.e. The blood has more platelets than WBC.
Platelets are tiny blood cells that help your body form clots to stop bleeding. If one of your blood vessels gets damaged, it sends out signals that are picked up by platelets. A normal platelet count ranges from 150,000 to 450,000 platelets per microliter of blood.