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the volume of air that is inhaled and exhaled during normal breathing.
the protection of species, habitats and ecosystems and the management of natural resources.
the structure that separates the right ventricle from the pulmonary artery. It prevents the...
a chemical messenger produced and released by a cell or a gland in one part of the body of the...
the final stage of cellular respiration: energy-rich ATP molecules and water are released as end...