All of the following are physical barriers to pathogens except
A) unbroken skin.
B) mucous.
C) hairs.
D) tears.
E) T cells.
Correct Answer:
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Q1: Which white blood cells comprise 3-7% of
Q2: Keratin is an important aspect of nonspecific
Q4: Nonspecific chemical defenses include
A)lysozyme.
B)lactic acid and electrolytes
Q5: The body region where a ciliary escalator
Q6: Lysozyme is found in _.
A) tears
B) salivary
Q8: The blood cells that function in allergic
Q9: Which of the following is incorrect about
Q11: The term _ is given to any
Q16: Plasma
A)is the liquid portion of blood in
Q18: Immune system cells differentiate between self and
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