中止
发表于 2025-3-28 17:30:05
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certain
发表于 2025-3-28 22:37:55
https://doi.org/10.1007/b138603of the carbon dioxide that they form entirely from their own tissues. Oxygen seems to aid photosynthetic assimilation of carbon dioxide. Thus, in environments lacking oxygen, the elaboration of a certain amount of oxygen appears necessary for the decomposition of a certain amount of carbon dioxide.