The two naming system developed by Linnaeus is called

Binomial Nomenclature.

Explanation:

This method gives species a new name that consists of two latin names put together. The two latin names put together must be the species name and genus name.

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.

this would be a math