1. proteins
2. essential
3. nonessential
hope this helps!!
The oxygen in the water molecule attracts the most electrons and in so doing attracts a slightly negative charge.
Carbon atoms are converted into metabolites like acetic acid, lactic acid, aldehydes, etc via the action of different bacteria. In the process of fermentation or cellular respiration, carbon atoms are cleaved into three carbon molecule called pyruvate then eventually forming into metabolites.
The answer is A because if you want a reliable source of scientific information you should go to an actual scientist at a scientific conference.
