What is respiration?

Respiration is the process by which living organisms take in oxygen and release carbon dioxide. This metabolic process is essential for the production of energy and is carried out by the respiratory system, which consists of the lungs, nose, trachea, bronchi, and alveoli. During respiration, oxygen is breathed in and transported to the cells where it combines with glucose to produce energy, releasing carbon dioxide as a waste product. Respiration occurs continuously in all living organisms and is essential for their survival.

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