Multiple Choice
What nonspecific cells kill virus-infected cells and tumor cells by cell to cell contact?
A) mast cells
B) Natural killer cells
C) T lymphocytes
D) B lymphocytes
Correct Answer:

Verified
Correct Answer:
Verified
Q34: Which of the following is NOT true
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Q57: What occurs because of increased capillary permeability
Q58: There are fewer T cells as we
Q61: Differentiate between nonspecific and specific defense,and give
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