What enzyme protects the linings of internal tubes from bacteria?
A) lactic acid
B) complement
C) cytokine
D) mucus
E) lysozyme
Correct Answer:
Verified
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Q7: Blood typing is based on _.
A)antibodies on
Q8: Four of the five answers listed below
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Q10: These antibodies stay attached to the B
Q12: Active immunity is generated by _.
A)avoiding the
Q13: Four of the five problems listed below
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