A College Student Decides to Spend the Afternoon Watching Three

question 103

Multiple Choice

A college student decides to spend the afternoon watching three movies rented from Red Box.The cost of each movie is $1.The student was willing to pay $4 to rent each of the first two movies and $2 to rent the third movie.What was the marginal benefit received by the student when renting the 1st movie?

• A) $1
• B) $8
• C) $4
• D) $2

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Definitions:

Juxtaglomerular Apparatus

A structure in the kidney that regulates blood pressure and the filtration rate of the glomerulus by releasing renin.

Macula Densa Cells

Specialized cells in the kidneys that sense sodium concentration and regulate the rate of glomerular filtration.

Interstitial Osmolarity

The concentration of solutes in the interstitial fluid, affecting the movement of water between cells and the extracellular fluid.

Countercurrent Exchange

A mechanism that allows for efficient transfer of heat or matter between fluids flowing in opposite directions.