Which of the following is an autoimmune disease?
Asthma
Cirrhosis
$AIDS$
Rheumatoid arthritis
What is the main cause of concern for today's youth ?
$LSD$ (Lysergic acid diethylamide) is prepared from
Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described ?
Amnesia is
Cancer cells are more easily damaged by radiation than normal cells because they are