Which of the sentences below best expresses the essential information in the passage?
Understand the Problem
The question is asking which sentence best summarizes the essential information about yawning from the provided passage. It seeks to identify the main idea or concept conveyed regarding the conventional theories of yawning and its physiological effects.
Answer
The conventional theory is that people yawn to increase alertness by reversing oxygen level drops.
The conventional theory is that people yawn when bored or sleepy to increase alertness by reversing the drop in blood oxygen levels.
Answer for screen readers
The conventional theory is that people yawn when bored or sleepy to increase alertness by reversing the drop in blood oxygen levels.
More Information
The passage critiques the conventional theory that yawning is linked to increased alertness or oxygen levels, providing evidence against this claim.
Tips
Ensure that the essential information maintains the original meaning without adding or omitting key details.
AI-generated content may contain errors. Please verify critical information
