Examlex
The country of Econoland produces two goods,textbooks and widgets.Last year,it produced 200 textbooks and 500 widgets.This year,it produced 250 textbooks and 600 widgets.Given no other information,which of the following events could not explain this change?
Baroreceptors
Specialized nerve endings located in the walls of blood vessels that sense changes in blood pressure and help regulate it.
Sympathetic Nervous System
Part of the autonomic nervous system that prepares the body for action by increasing heart rate, dilating airways, and other responses typically associated with the "fight or flight" response.
Blood Pressure
The force exerted by circulating blood on the walls of blood vessels and constitutes one of the principal vital signs.
Oxygen Demand
A measure of the amount of oxygen required to oxidize organic and inorganic materials in water, used as an indicator of water quality.
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