The Adaptive Immune System Is Capable of Mounting Specific Responses

question 16

Multiple Choice

The adaptive immune system is capable of mounting specific responses to particular microorganisms because

• A) lymphocytes are able to change their antigen specificity as required to fight infection.
• B) stem cells determine which type of B and T cells to make.
• C) the body contains an enormous diversity of lymphocytes, each with the ability to respond to a different antigen.
• D) stem cells make different antigen receptors depending on the invading microorganism.

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The additional revenue that a company earns from selling one more unit of a product or service.

Marginal Revenue

The additional revenue that a company generates from selling one more unit of a good or service.

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A grooming product used to style and hold the moustache in place.

Marginal Cost

The additional cost incurred by producing one more unit of a product or service.