Answer:
Fermentation is the process in which a carbohydrate source is converted in the absence of oxygen
1 raw meat is always stored on the bottom the blood can contaminate other foods .
Atom,molecule,cell,tissue,organism,population,ecosystem,biosphere.
Answer:
Cellular respiration involves many reactions in which electrons are passed from one molecule to another. Reactions involving electron transfers are known as oxidation-reduction reactions (or redox reactions).