Macrophages act as ______ of worn-out cells.
A) scavengers
B) healers
C) vectors
D) suppressors
Correct Answer:
Verified
Q4: T cells and B cells are the
Q8: Microscopic,hairlike structures that sweep foreign substances out
Q9: White blood cells are produced in the
A)brain.
B)bone
Q10: The natural environment in which a pathogen
Q11: All of the following are types of
Q12: A type of white blood cell that
Q14: One of the best ways to break
Q15: The body's first line of defense against
Q17: Obstacles to microorganisms entering the body include
Q18: Which of the following is not a
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