Abiology student is using illustrations of a virus, a bacteria, an amoeba, and a human skin cell to show the relative size of these microscopic objects. which of these is the smallest microscopic object?

its a virus

Explanation:

its smaller than a cell remember that it is not clasified as living bc of this

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.