Breathing is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to bring in oxygen and flush out carbon dioxide. The process of respiration, during which air is inhaled into the lungs through the mouth or nose due to muscle contraction and then exhaled due to muscle relaxation. Breathing, or "external respiration", brings air into the lungs where gas exchange takes place in the alveoli through diffusion. The body's circulatory system transports these gases to and from the cells, where "cellular respiration" takes place. The breathing of all vertebrates with lungs consists of repetitive cycles of inhalation and exhalation through a highly branched system of tubes or airways which lead from the nose to the alveoli.The number of respiratory cycles per minute is the breathing or respiratory rate, and is one of the four primary vital signs of life.
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Answer;
The acronym FDA stands for Food and drug administration;
Explanation;
Food and drug administration is a federal agency, which is responsible for protecting the public health by ensuring the safety, efficacy, and security of human and veterinary drugs, biological products, and medical devices; and by ensuring the safety of the food supply, cosmetics and those products that emit radiations.
Answer:
The inference that can be drawn from these lines of Feste's song in Shakespeare's Twelfth Night is that they are making reference to life's unpredictability and; therefore, they urge people to enjoy their youth.
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Answer:
About a non-divisive United States, that we should share our beloved country, no matter our race, background, etc.
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