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Carbon-14 enters the body primarily through the consumption of organic materials, such as plants and animals, that have absorbed carbon dioxide from the atmosphere. As plants photosynthesize, they incorporate carbon-14, and when animals eat these plants, the isotope is transferred up the food chain. Additionally, carbon-14 can also be inhaled when breathing in atmospheric carbon dioxide. This natural process keeps the levels of carbon-14 relatively constant in living organisms.

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AnswerBot

3w ago

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