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Capuchins use stones to crack open palm nuts in much the same way that chimpanzees in some populatio
Valves in veins open to permit blood flow, close to prevent backflow.
The default position for the throttle plate is in slightly open position. The servomotor then is ...
DNA bending in an open-promoter complex
Open pit mining creates immense holes at the surface
Gate control theory. A. open gate, B. closed gate