What would happen to blood pressure if the radius of a blood vessel decreases

If the radius of a blood vessel decreases, blood pressure will increase.

Explanation: A radius is the distance from the center of a circle to any part of the circumference. Blood vessels are like tubes, if the radius decreases, it means that the diameter decreases too and the vessel becomes narrower. The narrowing of the blood vessels results in increased blood pressure as the heart is being made to increase its pumping action in order to meet the body's demand for blood circulation.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

your answer should be c) enjoy!