Question 1: Innate and adaptive immune defenses work collectively in destroying invasive microorganisms. What is the interaction between macrophages and T lymphocytes during the presentation of antigen?
Question 2: Melissa's illness is caused by a virus. Where are type I interferons produced, and why are they important in combating viral infections?
Question 3: Humoral immunity involves the activation of B lymphocytes and production of antibodies. What are the general mechanisms of action that make antibodies a key component of an immune response?