The Staff of Ms

question 37

Multiple Choice

The staff of Ms.Tamara Hill,VP of Technical Analysis at Blue Sky Brokerage,prepared a frequency histogram of market capitalization of the 937 corporations listed on the American Stock Exchange in January 2013. Approximately ________ corporations had capitalization exceeding $200,000,000.

• A)50
• B)100
• C)700
• D)800
• E)890

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Definitions:

Excitatory Postsynaptic Potential

A temporary increase in postsynaptic membrane potential due to the flow of positively charged ions into the postsynaptic cell, making it more likely to fire an action potential.

Depolarization

The reduction in the electrical charge difference across a cell's plasma membrane, leading to the initiation of an action potential.

Resting Potential

The electrical charge difference across the cell membrane while a neuron is at rest, typically around -70mV, enabling the potential for action potentials.

Action Potential

A rapid increase and subsequent decrease in voltage across a cellular membrane, allowing neurons and muscle cells to communicate and react to stimuli.