Brainliesttt which families of metals are not so reactive, which allows them to exist by themselves in nature?

The answers are:1. Noble Gases,

2. The closer the element is to the noble gases the less reactive it is.Hope this helps !!! :)

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.

lipid

explanation: