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9/10 right · avg 3.5s · 8d 1h ago
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The ten questions
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- 1Science › Inventions & ExperimentsExpertThe Luria-Delbruck fluctuation test showed bacterial mutations arise how?Right5.9s+94
- 2Science › PhysicsEasyWhat is the name of the path one body follows around another in space?Right2.0s+100
- 3Science › Units & MeasuresEasyWhat is the SI base unit of time?Right1.5s+100
- 4Science › PhysicsMediumWhich isotope is used to date once-living material such as wood and bone?Right1.4s+100
- 5Science › PhysicsVery hardWhat are the hexagonal convection cells in a thin heated fluid layer called?Right6.0s+94
- 6Science › Inventions & ExperimentsHardWhich microscopy method images flash-frozen biological samples without stains?Right6.9s+93
- 7Science › PhysicsHardWhich law relates X-ray diffraction angles to the spacing of crystal planes?Wrong4.0s0
- 8Science › Inventions & ExperimentsHardA mass spectrometer separates ions according to which ratio?Right4.7s+96
- 9Science › Inventions & ExperimentsMediumWhich laboratory device separates mixtures by spinning them at high speed?Right1.2s+100
- 10Science › ScientistsMediumWhich ancient Greek thinker argued that matter is made of indivisible atoms?Right1.3s+100