-The Increase in the Demand for Widgets, Shown in the Figure

question 131

Multiple Choice

-The increase in the demand for widgets, shown in the figure above, is the result of an increase in the price of McBoover devices. Therefore

• A) widgets and McBoover devices are substitutes.
• B) widgets and McBoover devices are complements.
• C) widgets are a normal good.
• D) McBoover devices are a normal good.

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Definitions:

ECG

Electrocardiogram, a test that measures the electrical activity of the heart to identify various heart conditions.

Electrical Activity

The movement of electrically charged particles, such as ions, which is fundamental to many biological processes, including nerve conduction and muscle contraction.

Heart

A muscular organ responsible for pumping blood through the circulatory system.

Mitral Valve

A valve in the heart that allows blood to flow from the left atrium into the left ventricle but prevents it from flowing back into the atrium.