![]() Continued photosynthesis and feeding replaces the 14C atoms lost from the plants and animals by decay back to 14N (nitrogen-14). ![]() Radiocarbon is thus incorporated into plants by photosynthesis and into the animals that eat the plants. ![]() Radiocarbon ( 14C or carbon-14) atoms combine with oxygen atoms in the atmosphere to form carbon dioxide (CO 2) that circulates into the biosphere.
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