A theory is not proved yet, is based on hypotesis; a scientific law is something that has already bean proved scientifically
Answer:
Anaerobic respiration or fermentation
Explanation:
The metabolic pathway shown in the question is the summary of anaerobic respiration (fermentation) during which pyruvate is converted to acetaldehyde, followed by the formation of alcohol (ethanol), along with the release of NADH and NAD molecules. This mechanism occurs in the absence of oxygen and is thus used by organisms to generate energy (ATP) molecules.
I looked it up and it should be D. Nerve cells :)
On sooory I send u answer in msg