Trace Elements

question 30

Multiple Choice

Trace elements

• A)include zinc,copper,and manganese.
• B)are required in large amounts.
• C)may be needed for enzyme function.
• D)are involved in maintaining pH in the cell.
• E)include zinc,copper,and manganese AND may be needed for enzyme function.

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Definitions:

Experimental Research

A research method involving the manipulation of variables to determine cause-and-effect relationships.

Survey

A research method that involves collecting data from a sample of individuals through their responses to questions, aimed at gathering information about attitudes, behaviors, or characteristics.

Correlational Research

A type of non-experimental research method in which a researcher measures two variables, understands and assesses the statistical relationship between them without any causal assumption.

Independent Variables

Factors in an experiment that are deliberately altered to test their impact on the variables being measured.