Which cells are responsible for the production of antibodies?

In case of snakebites,the injection given to patients contains preformed antibodies against the snake venom. This type of immunisation is called . . . . . . .

What is introduced into the body during vaccination?

Innate immunity is characterized by:

Which of the following is $NOT$ included in innate immunity?

Regarding kidney transplantation,four statements are given below. Select the correct statements.
$i.$ During kidney transplantation,the recipient's immune system is suppressed for a long time.
$ii.$ Cell-mediated immunity is responsible for the rejection of the transplant.
$iii.$ $B$-lymphocytes are responsible for the rejection of the transplant.
$iv.$ Specific interferons are responsible for the acceptance or rejection of the kidney transplant.
Select the correct option: