A Two-Dimensional Graph Representing the Data Using Different Shades of Color

question 41

Multiple Choice

A two-dimensional graph representing the data using different shades of color to indicate magnitude is called a

• A)heat map.
• B)bubble chart.
• C)column chart.
• D)pie chart.

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Definitions:

Sleep Spindles

Brief bursts of brain activity that occur during stage 2 of the sleep cycle, involved in memory consolidation and learning.

Delta Waves

Slow brain waves typically associated with deep sleep and certain states of brain activity.

Paradoxical Sleep

Another term for REM (rapid eye movement) sleep, a sleep stage during which the most vivid dreams occur, characterized by paradoxical signals of brain activity.

Non-REM Sleep

A restful phase of sleep that progresses through several stages and is characterized by a decrease in physiological activity.