Verified Answers Graded A
What do saliva, tears, and nasal mucus have in common? - Ans -NOT:All are part of
the complement system.
What is the difference between B-cell lymphocytes and T-cell lymphocytes? - Ans -B
cells produce antibodies, and T cells destroy infected cells.
A person who has a weakened immune system may not be able to fight against infection
because - Ans -pathogens may enter the body and cause illness.
Which type of barrier are coughing and sneezing? - Ans -physical
Which is an effect of a compromised immune system? - Ans -decreased antibody
production
Which are the physical (P), chemical (C), and biological (B) immune responses? -
Ans -P: coughing; C: saliva; B: complement system
Lupus, a condition in which the body attacks its own cells, is an example of - Ans -an
autoimmune disorder.
How does fever indicate that your body's immune system is doing its job? - Ans -Fever
raises the body's temperature to destroy harmful substances.
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