Cancer cells and virus-infected body cells can be killed before activation of adaptive immunity by ________.
A) natural killer cells
B) T lymphocytes
C) B lymphocytes
D) pinocytosis
Answer: A) natural killer cells
Cancer cells and virus-infected body cells can be killed before activation of adaptive immunity by ________.
A) natural killer cells
B) T lymphocytes
C) B lymphocytes
D) pinocytosis
Answer: A) natural killer cells
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