Examlex
The least complex fossils generally are found in the oldest geological strata.
Tidal Volume
The volume of air displaced between normal inhalation and exhalation when extra effort is not applied, a key component of respiratory physiology.
Hyperventilates
Breathing at an abnormally rapid rate, leading to decreased carbon dioxide levels in the blood.
Carbon Dioxide
Carbon dioxide is a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in the air and is absorbed by plants in photosynthesis.
Blood CO2 Levels
The concentration of carbon dioxide in the blood, which is critical for maintaining the body's acid-base balance.
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