Tobacco contains ........... which raise blood pressure and increase heart rate.
Nicotine
Cocaine
Heroin
$LSD$
The smallest virus one, which causes
Read the following sentences and choose correct sentences
$1.$ Dysentery, plague, diphtheria are caused by bacteria
$2.$ Salmonella typhi directly affect the respiratory system
$3.$ Amoebiasis and Ascariasis are caused by contaminated water
$4.$ Internal bleeding, anemia muscular pain are symptoms of elephantiasis
Which are the drugs which are normally used as medicines to help patients cope up with mental illness like depression and insomnia and are often abused?
If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence ?