What is mean by respiratory system
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Explanation:The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history
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The respiratory system is the set of organs that allows a person to breathe and exchange oxygen and carbon dioxide throughout the body. An example of respiratory system is the human's nasal passages, larynx, trachea, bronchial tubes and lungs.
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