Photo de stock - Fort Collins, Colorado - Amy Gurza, a biological science technician, inspects the contents of a tank of liquid nitrogen that stores seeds and other germplasm at -320 degrees F at the National Laboratory for Genetic Resources Preservation. The lab is part of the Department of Agriculture.

Photo de stock: Fort Collins, Colorado - Amy Gurza, a biological science technician, inspects the contents of a tank of liquid nitrogen that stores seeds and other germplasm at.

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