The Authors Compare Communication in the Sensory System to the Activities

question 278

Multiple Choice

The authors compare communication in the sensory system to the activities on a battlefield. The sense receptors are like military scouts because they:

• A) spontaneously make many decisions.
• B) combine their information with that of other scouts.
• C) analyze reports to determine their next move.
• D) scan the terrain for signs of activity.

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Definitions:

Electromechanical Relay

A switch operated by an electromagnet to open or close one or many sets of contacts, used in control systems.

Electromagnetism

The branch of physics concerned with the interaction of electric currents or fields and magnetic fields.

Fiber Optic Sensor

A sensing device that uses light guided through fibers to detect changes in a parameter, such as temperature or pressure.

Electrical Interference

Disturbances generated by external sources that affect an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction.