Answer:
Electron Transport Chain
In the third stage, electrons from the NADH and FADH2 molecules move to the electron transport chain (ETC). These electrons generate the required power to move protons through the mitochondria into the space between membranes. In the final stage of cellular respiration, oxygen combines with the electrons and protons to form water.
Probably if there are not enough plants in that area
Answer:
A.
Explanation:
All other options are simply situational, while cold periods are usually seasonal.
The better answer is organism