My best guess would be c because b makes no since we as humans do not have photosynthesis and are considered living organisims, d is also wrong because the brain requires oxygen, and its not a because the brain is made of cells.
The answer is B.
Fermentation(an anaerobic process) is a way of harvesting chemical energy without using either oxygen or any electron transport chain.
Fermentation consists of glycolysis plus reaction that regenerate NAD+ by transferring electrons from NADH to pyruvate or derivatives of pyruvate.
There are many types of fermentation, lactic acid fermentation and alcohol fermentation are the most common two.
Answer:
well i believe its the burning of coal and it releases nutrients
Explanation:
but other then that i dont know but hope this helps 3 min