Which natural event would cause an overpopulation of a species?

a.
the grass that was eaten by the rabbits stopped growing.

b.
the population of wolves who ate the rabbits decreased.

c.
the rabbits that were eaten by the wolves began dying off due to disease.

d.
the grasshoppers were affected by the diseased grass.

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.