The Level of Detail in a Fact Table Determined by the Intersection

question 1

Multiple Choice

The level of detail in a fact table determined by the intersection of all the components of the primary key, including all foreign keys and any other primary key elements, is called the:

• A) span.
• B) grain.
• C) selection.
• D) aggregation.

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Definitions:

Myelin

A fatty substance that forms a sheath around the axons of many neurons, helping to speed the conduction of nerve impulses.

Synaptic Vesicles

Membrane-bound sacs in the axon terminal of neurons that store neurotransmitters to be released at the synapse.

Synapse

The junction between two neurons where electrical or chemical signals are transmitted from one neuron to another.

Neurotransmitter

A Neurotransmitter is a chemical substance released by nerve cells to transmit signals to other nerve cells across synapses, playing a crucial role in the functioning of the nervous system.