The correct answer is: D. Alcohol fermentation
Alcohol fermentation is a form of anaerobic where the simple sugars such as glucose or fructose are converted into energy (ATP) and the products of this reaction are ethanol and carbon dioxide. Alcohol mechanism is performed by yeast and some fishes. This is a mechanism used for the production of alcoholic beverages.
<span>Gill arches of jawless fishes</span>
