for his work on ribonucleaseandfor their contribution to the understanding of the connection between chemical structure and catalytic activity of the ribonuclease molecule
for their elucidation of the enzymatic mechanism underlying the synthesis of adenosine triphosphateandfor his discovery of an ion-transporting enzyme, Na+, K+ -ATPase
... experience frost and snow. Precipitation is abundant in the humid Amazon Basin[?], though more arid landscapes are found as well, in particular in the northeast.
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