Which of the Following Statements Is TRUE

question 37

Multiple Choice

Which of the following statements is TRUE?

• A)A megadose of vitamin C is within the range of safe intake for the nutrient.
• B)Peanut butter is an empty-calorie food.
• C)Most foods are mixtures of nutrients.
• D)A healthy diet supplies 90% of its calories from protein-rich foods. 

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Definitions:

Frequency

The rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves) or in an electromagnetic field (as in radio waves and light), usually measured in hertz.

Hue

A specific shade of a color perceived by the eye, determined by its wavelength of light.

Timbre

The quality of a musical note, sound, or tone that distinguishes different types of sound production, such as voices or musical instruments.

Opponent-Process Theory

A psychological and neurological model that explains how the perception of colors is controlled by the operation of opposing neural systems.