A Nurse Is Reviewing the Immune System with a Group

question 2

Multiple Choice

A nurse is reviewing the immune system with a group of nursing students. One student asks about the difference between cell-mediated immunity and humoral immunity. What should the nurse reply?

• A) "Humoral immunity does not involve helper T cells in the immune response."
• B) "Humoral immunity does not have a role in hypersensitivity reactions."
• C) "Humoral immunity requires cytolytic T cells that attack antigens directly."
• D) "Humoral immunity uses cells produced by B lymphocytes in the immune response."

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Definitions:

Economic Profits

The extra amount businesses earn after subtracting all of their costs, including opportunity costs.

Long Run

A period in which all factors of production and costs are variable, allowing for all adjustments to be made within a market or economy.

Monopolistic Competition

A market structure characterized by many firms selling products that are similar but not identical, allowing for competition based on quality, brand, and price.

Deadweight Loss

A loss of economic efficiency that can occur when the free market equilibrium for a good or a service is not achieved, leading to a loss of total societal welfare.