Scenario Yawning Is a Reflexive Action That Is Often Associated with with Sleepiness

question 53

Multiple Choice

Scenario
Yawning is a reflexive action that is often associated with sleepiness. When a person yawns, the mouth opens, and a longer than normal breath of air is inhaled, followed by a longer than normal exhalation. Hypothesizing that yawning has a regulatory mechanism similar to breathing, scientists conducted an experiment on college students to test the effect of existing carbon dioxide levels on yawning.
-What finding would be considered support for the hypothesis tested by the scientists?

• A)College students produce more carbon dioxide when they yawn more frequently.
• B)College students yawn with the same frequency regardless of carbon dioxide levels.
• C)College students yawn more when they are in lecture, compared to when they are in lab.
• D)College students yawn more when they are exposed to higher levels of carbon dioxide.

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Definitions:

Regulators

Authorities or bodies that establish and enforce standards or rules within specific sectors to ensure proper operation and compliance with legal requirements.

Reviewers

Individuals who evaluate, critique, or give their opinions on products, services, artistic works, or literature, often influencing public perception.

Increasingly Popular

Gaining more widespread acceptance, favor, or usage over time.

Objectivity

The principle or practice of maintaining impartiality and neutrality, avoiding bias or subjective judgment in various fields.