In the given diagram of the life cycle of Anopheles,what do the parts labeled '$A$' and '$B$' represent respectively?

State whether true or false :
$(1)$ Gastrointestinal tract,kidney and heart also produce hormones.
$(2)$ Pars distalis produces six trophic hormones.
$(3)$ $B$-lymphocytes provide cell-mediated immunity.
$(4)$ Insulin resistance results in a disease called diabetes mellitus.

Match the diseases with their respective pathogens or treatments.

List-$I$	List-$II$
$(a)$ Amoebiasis	$(i)$ Treponema pallidum
$(b)$ Diphtheria	$(ii)$ Use of sterile food
$(c)$ Cholera	$(iii)$ $DT$ vaccine
$(d)$ Syphilis	$(iv)$ Use of Oral Rehydration Therapy

Match the following columns correctly.

Column-$I$	Column-$II$	Column-$III$
$(a)$ $Streptococcus$ $pneumoniae$	$(p)$ $3-7$ days	$(z)$ Common cold
$(b)$ $Salmonella$ $typhi$	$(q)$ $1-3$ weeks	$(x)$ Typhoid
$(c)$ $Rhinovirus$	$(r)$ $1-3$ days	$(y)$ Pneumonia

Bulimia is a type of psychosis,which means . . . . . . .

Match the following:

Column-$I$	Column-$II$
$(A)$ Ringworms	$(P)$ $W. malayi$
$(B)$ Elephantiasis	$(Q)$ Rhino virus
$(C)$ Common cold	$(R)$ $HIV$
	$(S)$ $Trichophyton$