23 abril 2015
Photosynthesis leaves behind a unique calling card, a chemical signature that is spelled out with stable oxygen isotopes, according to a new study. The findings suggest isotopic signatures could exist for many biological and geological processes, including some that are difficult to observe with current tools.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hs4snTTyrcQ/150423142818.htm
