Swollen lymph nodes are an indication of
A) anemia.
B) poor diet.
C) hemophilia.
D) infection.
Correct Answer:
Verified
Q4: T cells and B cells are the
Q5: Macrophages act as
A)scavengers of worn-out cells.
B)healers of
Q6: Tears,saliva,and vaginal secretions are rich in _
Q7: A marker on the surface of a
Q8: Which of the following is a defense
Q10: Chemicals responsible for the dilation and increased
Q11: T and B cells help preserve the
Q12: Vessels,organs,and structures that pick up excess fluids,then
Q13: A microorganism that causes disease is a(n)
A)antigen.
B)toxin.
C)pathogen.
D)antibody.
Q14: Hair-like protrusions that sweep foreign substances out
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