In our society,....... is an auto-immune disease.

Acid in the stomach,saliva in the mouth,and tears from the eyes all prevent microbial growth. These belong to which of the following barriers?

Arrange the steps of the $phagocytosis$ process in the correct sequence.
$(a)$ Ingestion of microbes by phagocytes
$(b)$ Dilation of blood vessels by histamine
$(c)$ Formation of $phagosome$ and $phagolysosome$
$(d)$ Migration of phagocytes into $E.C.F.$
$(e)$ Attraction of phagocytes by $chemotoxins$ secreted by microbes
$(f)$ Intracellular destruction of bacteria

Which of the following provides passive immunity?

Define/Explain: Pathogens and Auto-immunity.

Which of the following occurs in passive acquired immunity?