okay so there's a graph showing the data from a study about pregnancy and smoking in women in the UK. the question is asking me Sampling from the whole UK population would not be appropriate for this study, give one reason why. pls help in confused as

are there any answer choices

explanation:

plz give me the characteristics.

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.