Which of the following nonspecific defense mechanisms is already present and available to respond immediately to infection (and does NOT need to be synthesized)?
a. interferon
b. selectin
c. complement
d. nitric oxide
e. prostaglandins
Answer: c. complement
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.