Answer:
The correct answer is the third answer. "It helps us move and perform our daily activities."
Answer:
In what middle?
Explanation:
What are the list of answers? Is there a story?
The discovery that the narrator makes by dissecting his brain is learning that his thoughts require a constant flow of pressurized air because brain activity slows due to low air pressure.
Synonym clue, because a Synonym is a word that is exactly like or nearly like another word, if the word trying to be explained is explained by comparing it to another word is is exactly or nearly like it it is a Synonym Clue.
With my loyal black cat, max is the corrected error