Breastfeeding can be categorized under which type of immunity?

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

Vaccination protects a person from disease because it

Which group of cells acts as phagocytes?

Which cells in the body secrete lymphokines or interferons?

The grafting between two identical twins is known as