Because of Their Scarcity, the Efficient Use of Resources Is

question 18

Multiple Choice

Because of their scarcity, the efficient use of resources is:

• A)an important issue in all economies.
• B)an important issue only in centrally planned economies.
• C)an important issue only in market economies.
• D)not an important issue.

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Definitions:

Temporal Summation

A process by which multiple subthreshold excitatory post-synaptic potentials (EPSPs) combine within a brief period to produce a larger postsynaptic potential.

Spatial Summation

The process by which multiple synaptic inputs from different locations on the same neuron combine to influence the firing rate or activity of the neuron.

Dendrites

The branched projections of a neuron that act to conduct the electrochemical stimulation received from other neural cells to the cell body.

Back Propagation

Reverse movement of an action potential into the soma and dendritic field of a neuron; postulated to play a role in plastic changes that underlie learning.