A type of second-line defense, these lymphocytes act nonspecifically to kill cells that have been infected by certain viruses and cancer cells.
A) B cells
B) NK cells
C) T cells
D) lymphokines

Question

Quizplus · Accepted Answer

NK (natural killer) cells are known for their ability to kill infected cells and cancer cells without the need for prior activation or specific recognition of antigens.

A Type of Second-Line Defense, These Lymphocytes Act Nonspecifically to Kill