Over the Past 40 Years, There Has Been an Increase

question 223

Multiple Choice

Over the past 40 years, there has been an increase in spending on public education without a significant increase in student performance. One explanation given by economists on why student performance has not improved is that

• A)not enough funds have been spent on public education.
• B)schools are providing high-priced services that are not valued by parents.
• C)the quantity of educational services has not increased beyond the pre-subsidy equilibrium.
• D)too much competition for educational services.

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Definitions:

Semilunar Valves

Heart valves located between the ventricles and the major arteries leaving the heart, which prevent the backflow of blood.

AV Valves

Atrioventricular (AV) valves are valves located between the atria and ventricles of the heart that prevent backflow of blood from the ventricles into the atria during contraction.

Afterload

The pressure against which the heart must work to eject blood during systole.

Ventricles

Chambers in the heart and brain that have various functions, such as pumping blood or storing cerebrospinal fluid.