Answer: A. It is needed to support an aerobic metablism
Explanation:
All living organisms require oxygen for anaerobic metabolism. The oxygen taken in during cellular respiration is needed to breakdown sugar to generate energy in living organisms and this necessary for the advancement of life.
A. gets no fertilizer each day
The third phases is anaphase
2. The endosymbiotic theory suggests that a eukaryotic cell is the result of one prokaryotic cell eating another.