Which of the following fish is introduced in pond to control or eliminate the vector responsible for the transmission of malaria and filariasis?
Exocoetus
Pristis
Scoliodon
Gambusia
T-lymphocyte is produced in
Polio immunizing vaccine was developed by
Study of interaction of antigens and antibodies in the blood is
Which of the following causes plague?
The treatment of snake bite by antivenom is an example of