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Extent of agricultural activity across the planet (data from Foley et al. 2005).
The heme group viewed from the side. This view shows the two coordination bonds to Fe2+
Risks of infectious disease increase in (a) high-density agricultural populations compared to (b) lo
Major Agricultural Crops Produced in the United States, 2011
Group Defenses: Musk Oxen
Two ways of treating blocked coronary arteries, the main cause of heart attacks in older adults.