Cells that provide immunity against
antigens and pathogens found in the body
fluids are

A                                               B

humoral immunityimmunity against pathogens in the body fluids

cell-mediated immunityan immune respone in which killer T cells attack                                                                         .                                                antigen-bearing cells directly

permanent immunitycondition in which people who have survived                  .                                       exposure to a disease never develop it again

There are plenty more cells that provide immunity against antigens and pathogens found in the body but these are just a few.

you may having too much sleep.. a good night sleep consists of about 7 hours. more than that could be the reason you're still tired throughout the day.