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What is the most powerful age segment economically in the United States?
Blood Ph
The measure of the acidity or alkalinity of the blood, typically maintained within a tight range around a neutral pH of 7.4.
CO₂
Carbon dioxide, a colorless gas produced by burning carbon and organic compounds and by respiration. It is absorbed by plants in photosynthesis.
Vasoconstriction
The narrowing of blood vessels, which increases blood pressure by reducing the volume or space inside the vessels.
Respiratory Centers
Brain regions that regulate the rate and depth of breathing, located primarily in the medulla oblongata and pons.
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