Help please, due tonight!

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.

Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?