(A) $$ \to $$ (iv), (B) $$ \to $$ (i), (C) $$ \to $$ (ii), (D) $$ \to $$ (iii)

(A) $$ \to $$ (iii), (B) $$ \to $$ (iv), (C) $$ \to $$ (i), (D) $$ \to $$ (ii)

(A) $$ \to $$ (i), (B) $$ \to $$ (iii), (C) $$ \to $$ (ii), (D) $$ \to $$ (iv)

(A) $$ \to $$ (ii), (B) $$ \to $$ (i), (C) $$ \to $$ (iii), (D) $$ \to $$ (iv)

Trophozoites

Sporozoites

Male gametocytes

Female gametocytes

Active immunity is quick and gives full response.

When exposed to antigen (living or dead) antibodies are produced in the host’s body. It is called “Active immunity”.

Foetus receives some antibodies from mother, it is an example for passive immunity.

When ready-made antibodies are directly given, it is called “Passive immunity”

Salmonella typhi/ Anthorone test

Salmonella typhi/ Widal test

Plasmodium vivax/ UTI test

Streptococcus pneumoniae/ Widal test