What Is the Difference Between a Subscription Online Resource and a Free

question 6

Multiple Choice

What is the difference between a subscription online resource and a free online resource?

• A)One is free and the other has a fee associated with it.
• B)The free resource is sponsored by advertisers and is unfiltered.
• C)The subscription resource is sponsored only by subscribers and is screened to fit certain reviewer criteria.
• D)All of the above

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Definitions:

C3

A protein component of the immune system's complement system, which enhances the ability of antibodies and phagocytic cells to clear pathogens from an organism.

Foreign Antigens

Substances from outside the body that can induce an immune response.

Foreign Substances

Materials or particles that are not recognized as part of the body, often invoking an immune response.

MAC

Membrane attack complex (MAC) is a structure formed on the surface of pathogenic bacteria as part of the immune system's response, leading to the lysis of these cells.