I believe the answer is:
~Taxonomy.
Please correct me if i'm wrong please!!
Have a great day!!
Sickle Cell Anemia
Hope this helps (:
Answer:
I think it's A- phylum, hope this helps
The changes in the grape juice happened due to the alcoholic fermentation of the grape juice that occurs due to the presence of aerobic bacteria. The presence of yeast is the main reason behind the process of fermentation taking place. The froth is produced due to the presence of the formation of acid and carbon dioxide.