Vector for ‘kala azar' disease is
Sand fly
House fly
Louse
Bed bug
Ergot, which is an important source of a drug is obtained from
Edward Jenner discovered
Injections of antitoxin or toxoid serum is given to prevent
$ADH$ is secreted from the posterior lobe of pituitary and its deficiency leads to
Which of the following cells are involved in defence mechanism of the body?