I would say photosynthetic bacteria are the most important, because if they disappeared most of the oxygen in the atmosphere wouldnt be here and complex life like humans wouldnt exist
Answer:
The evidence suggests that these chloroplast organelles were also once free-living bacteria.
Explanation:
The endosymbiotic event that generated mitochondria must have happened early in the history of eukaryotes, because all eukaryotes have them.
:)
T<span>he </span>formula for cellular respiration<span> is glucose plus oxygen yields carbon dioxide, water and ATP, written as C6H12O6 + 6O2 --> 6H2O + 6CO2 + ATP.</span>