Interferons and complement proteins are examples of:
A. mechanical barriers
B. antibodies (immunoglobulins)
C. phagocytes
D. chemical barriers
Answer: D. chemical barriers
Biology & Microbiology
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What will be an ideal response?
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Which of the following protists may cause
dysentery after drinking contaminated water?
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The autonomic subdivision consists specifically of
a. central and peripheral nerves. b. parasympathetic and sympathetic nerves. c. somatic and involuntary nerves. d. brain and spinal cord nerves. e. spinal and cranial nerves.
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Briefly explain the formation of bone in the human body
What will be an ideal response?
Biology & Microbiology