Which of the following cells is part of the body's second line of defense?
A)Mucous cells
B)Dendritic cells
C)B and T Lymphocytes
D)Natural killer cells
E)None of these choices

Question

Quizplus · Accepted Answer

Natural killer cells are a part of the body's second line of defense. They are able to recognize and kill infected or abnormal cells without the need for prior exposure or activation, making them an important part of the innate immune system. Mucous cells are a part of the body's first line of defense, while dendritic cells and B and T lymphocytes are involved in the adaptive immune response, which is the third line of defense. Therefore, the correct answer is D) Natural killer cells.

Which of the Following Cells Is Part of the Body's