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 any given time.

Blood cells constitute about 70% of the total volume of the blood.

White Blood Cells are made of lymph nodes only.

The blood has more platelets than WBC.

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Explanation:

These blood cells (which are also called corpuscles or "formed elements") consist of erythrocytes (red blood cells, RBCs), leukocytes (white blood cells), and thrombocytes (platelets). By volume, the red blood cells constitute about 45% of whole blood, the plasma about 54.3%, and white cells about 0.7%