________ Occurs When There Is Only One Provider of a Service

question 27

Multiple Choice

________ occurs when there is only one provider of a service or product and no substitutes for the service or product exist.

• A) A duopoly
• B) A monopoly
• C) An oligopoly
• D) Perfect competition
• E) Monopolistic competition

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Definitions:

Electrically Excitable Cells

Cells capable of generating and propagating electrical impulses, such as neurons and muscle cells.

Depolarization

A decrease in the difference in electrical charge between the inside and outside of a cell's membrane, critical for nerve impulse transmission.

Na+ Ion Channels

Protein channels in cell membranes that allow for the selective passage of sodium ions across the membrane, crucial for generating and transmitting electrical signals.

Permeable

Capable of allowing fluids or gases to pass through it.