Identify the wrongly matched pair.
Typhoid - Widal test
Plague - Viral disease
Malignant malaria - Plasmodium falciparum
Common cold - Rhinovirus
A person has developed interferon in his body. He seems to carry an infection of
Motile elongate zygote of Plasmodium occurs in
Which of the following cells is phagocytic in nature
Dreaming occurs in
$A$ - Smoking increases $O_2$, content in blood. $R$ - Nicotine stimulates adrenal gland.