The Perception of Different Colors, Such as Red, Green, or Blue

question 411

Multiple Choice

The perception of different colors, such as red, green, or blue, is caused by:

• A) the activation of specialized rods in the retina.
• B) the amplitude or intensity of light waves.
• C) different wavelengths of light.
• D) the degree of saturation of the light wave.

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Definitions:

Hypothalamus

A region of the brain below the thalamus, coordinating both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems.

Homeostasis

The regulation of internal conditions within cells or organisms to maintain a stable, constant environment.

Autonomic Nervous System

The part of the nervous system that controls involuntary actions of the body, such as heart rate, digestion, and respiratory rate.

Relay Station

A site or mechanism in the body or in a communication system for passing signals or messages from one part or member to another.