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Why would all protozoa be expected to require large amounts of water in their habitats?
Oxygen
A chemical element with symbol O, essential for cellular respiration in aerobic organisms and a component of the Earth's atmosphere.
Surfactant
A substance that reduces the surface tension of a liquid, aiding in processes such as lung function and cleaning.
Alveoli
Tiny air sacs in the lungs where gas exchange takes place, oxygen enters the blood, and carbon dioxide is removed.
Bicarbonate Ions
The bicarbonate ion (HCO3-) plays a crucial role in maintaining the body's pH balance, particularly in the buffering of blood plasma.
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