Julie Finds That the Number of Hours She Sleeps Each

question 201

Multiple Choice

Julie finds that the number of hours she sleeps each night is related to the scores she receives on quizzes the next day. As her sleep approaches 8 hours, her quiz scores improve; as her sleep drops to 5 hours, her quiz scores show a similar decline. Julie realizes that __________

• A) there is a negative correlation between the number of hours she sleeps and her quiz grades.
• B) there is a positive correlation between the number of hours she sleeps and her quiz grades.
• C) her low quiz scores are caused by sleep deprivation the night before a quiz.
• D) she should sleep about 10 hours a night to ensure 100 percent quiz grades.

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Definitions:

Potassium

An essential dietary mineral and electrolyte involved in nerve function, muscle contraction, and maintaining fluid and electrolyte balance in the body.

Sodium

A chemical element, symbol Na, essential for various bodily functions, including maintaining fluid balance and conducting nerve impulses.

Resting Potential

A state of readiness of a neuron membrane's potential between signals, characterized by a negative charge within the neuron relative to the exterior.

Intracellular

Located or occurring within a cell or cells.