Figure 21-5

question 369

Multiple Choice

Figure 21-5
(a)
(b)
-Refer to Figure 21-5. Assume that a consumer faces the budget constraint shown in graph (a) in January and the budget constraint shown in graph (b) in February. If the consumer's income has remained constant, then what has happened to prices between January and February?

• A)The price of X has fallen, but there could not have been a change in the price of Y.
• B)The price of Y has fallen, but there could not have been a change in the price of X.
• C)The price of X has fallen, and the price of Y has risen.
• D)The price of Y has fallen, and the price of X has risen.

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Definitions:

Action Potentials

Rapid, temporary changes in the electrical membrane potential of cells, which are fundamental in the conduction of impulses along nerves and muscle fibers.

Frequency

In physics, it refers to the number of occurrences of a repeating event per unit of time, often used in the context of waves.

Repolarization

The process by which a neuron or muscle cell returns to its resting negative charge after depolarization.

Neuron Polarity

The structural and functional difference between the axon and dendrites of a neuron, which determines the direction of nerve impulse transmission.