OPTIONS:
-keeps the organism warm.
-rapid expansion.
-permineralization.
-Plant growth is reduced.
-major threat to health.
-electron transport.
-more abundant.
-flow of electrons.
Q: You are presented with the quiz "That the cellular level, the final stage of breathing oxygen is" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "electron transport is the final stage of aerobic respiration" and "breathing gets oxygen into the body, but aerobic respiration occurs at the cellular level". So, what's the best answer to the question?
A:
electron transport