Nanette Must Pass Through Three Doors as She Walks from Her

question 12

Multiple Choice

Nanette must pass through three doors as she walks from her company's foyer to her office. Each of these doors may be locked or unlocked. Let C be the event that at least two doors are in the same condition. List the outcomes
of C. [Let "L" designate "locked" and U" designate "unlocked".]

• A){LLL, LLU, LUL, LUU, ULL, ULU, UUL, UUU}
• B){LLU, LUL, ULL, LUU, ULU, UUL}
• C){LLU, LUL, ULL}
• D)None of these.

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Definitions:

Neurotransmitter

Chemicals released by neurons to transmit signals across a synapse to another neuron, muscle cell, or gland.

Calcium Channel

Calcium channels are protein-based channels within cell membranes that selectively allow calcium ions to move into or out of a cell, playing critical roles in various physiological processes including muscle contraction, neurotransmission, and gene expression.

Myelin Sheath

A fatty layer that surrounds nerve fibers, providing insulation and increasing the speed of electrical transmission along the neuron.

Receptor

A protein on the surface of a cell or inside it that binds to specific molecules, triggering a specific effect in the cell, such as a response to hormones or neurotransmitters.