Jarrod Hypothesizes That Getting Plenty of Sleep Leads to Lower

question 41

Multiple Choice

Jarrod hypothesizes that getting plenty of sleep leads to lower blood pressure, and that lower blood pressure reduces stress. In this hypothesis, which of the following is the mediating variable?

• A) Stress
• B) Sleep
• C) Blood pressure
• D) The hypothesis does not have a mediating variable

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Definitions:

Capillaries

Tiny blood vessels that form a network to exchange oxygen, carbon dioxide, and other substances between blood and tissues.

Glottis

The opening between the vocal cords in the larynx, through which air passes during respiration and which is used in producing vocal sounds.

Epiglottis

A leaf-shaped flap of cartilage located behind the tongue, which closes over the windpipe during swallowing to prevent food from entering the airways.

Nasal Cavity

The interior space of the nose, lined with mucosa, involved in breathing and the olfactory process.