In a Test of the Effects of Air Pollution, Groups

question 30

Multiple Choice

In a test of the effects of air pollution, groups of students performed a reaction-time task in a polluted or an unpolluted room. To what condition were students in the unpolluted room exposed?

• A) experimental
• B) control
• C) randomly assigned
• D) dependent

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Definitions:

Dissociation Curve

A graphical representation of the relationship between the saturation of a substance (e.g., oxygen in hemoglobin) and the concentration or pressure of that substance.

Chloride Ions

Negatively charged ions (Cl-) that play critical roles in the body, including maintaining fluid balance and contributing to acid-base balance.

Hemoglobin

Hemoglobin is a protein in red blood cells responsible for transporting oxygen from the lungs to the rest of the body and returning carbon dioxide from the body to the lungs for exhalation.

Equilibrium

Equilibrium refers to a state of balance between opposing forces or actions, such as in chemical reactions reaching a state where forward and backward reaction rates are equal.