In Order to Establish an Unambiguous Relationship Between Two Variables,it

question 37

Multiple Choice

In order to establish an unambiguous relationship between two variables,it is necessary to eliminate the possible influence of

• A)extraneous variables.
• B)confounding variables.
• C)independent variables.
• D)dependent variables.

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Definitions:

Opsonization

A process in which pathogens are marked for ingestion and destruction by phagocytes.

Complement Action

An aspect of the immune system involving a series of proteins that enhance the ability of antibodies and phagocytic cells to clear pathogens from an organism.

Germinal Centers

Areas within lymph nodes where mature B cells rapidly divide, differentiate, and mutate their antibody genes during an immune response.

Lymph Nodes

Small, bean-shaped structures that produce and store cells that help fight infection and disease as part of the lymphatic system.