Which Immunoglobulin Class Is Attached to the External Surface of B

question 108

Multiple Choice

Which immunoglobulin class is attached to the external surface of B cells and acts as an antigen receptor of the B cell?

• A) IgD
• B) IgM
• C) IgA
• D) IgG
• E) IgE

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Definitions:

Pollution Permits

Government-issued licenses allowing the holder to emit a certain amount of pollution; used as a regulatory tool to control and reduce environmental damage.

Pollution Levels

The concentration of pollutants in the environment, affecting air, water, and soil quality.

Marginal External Cost

The cost of producing an additional unit of a good or service that is borne by individuals other than the producer, typically not reflected in the market price.

Park Visitation Fee

A charge imposed on visitors for access to a park, used to fund conservation efforts, maintenance, and improve the visitor experience.