Natural killer (NK) cells ________.
A) are also called cytotoxic T cells
B) are a type of phagocyte
C) are cells of the specific immune system
D) can kill cancer cells before the immune system is activated
Answer: D
Natural killer (NK) cells ________.
A) are also called cytotoxic T cells
B) are a type of phagocyte
C) are cells of the specific immune system
D) can kill cancer cells before the immune system is activated
Answer: D