Examlex
Voter turnout in the United States has been falling since World War II.Apart from Switzerland,the United States now has the lowest turnout of any rich democracy in the world.
Gas Exchange Efficiency
The effectiveness with which an organism exchanges oxygen and carbon dioxide with its environment, crucial for respiration.
Capillaries
The smallest blood vessels in the body's circulatory system, responsible for the exchange of water, oxygen, carbon dioxide, and many other nutrient and waste substances between blood and surrounding tissues.
Alveoli
Small air bladders in the lungs responsible for the transfer of oxygen and carbon dioxide.
Gas Exchange
The process by which living organisms swap oxygen for carbon dioxide with the surrounding environment.
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