Answer:
In a yeast fermentation lab, besides measuring the production of carbon dioxide gas as an indicator of fermentation activity, another dependent variable that could be used to analyze if fermentation is occurring is the measurement of alcohol production. This can be done by analyzing the ethanol content in the fermentation mixture using methods such as gas chromatography or alcohol concentration kits. Ethanol production is a direct result of yeast fermentation, so tracking its concentration can provide additional insights into the fermentation process and its efficiency.
