Which Is Incorrect About Complement

question 24

Multiple Choice

Which is incorrect about complement?

• A)Composed of at least 26 blood proteins
• B)Only appear in the blood during a response to a pathogen
• C)Act in a cascade reaction
• D)Involves a classical pathway
• E)Involves an alternate pathway

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Definitions:

Independent Variable

In experimental research, the variable that is manipulated or changed by the researcher to observe its effects on the dependent variable.

Dependent Variable

The variable in a study that is expected to change in response to manipulations of the independent variable, effectively measured to assess the effect.

Experimental Manipulation

The alteration of an independent variable to determine its effect on a dependent variable within an experiment.

Third-variable Problem

A scenario in research where an unmeasured variable causes or influences both variables of interest, potentially misleading interpretations of a correlation or relationship.