The oxygen revolution changed Earth’s environment dramatically. Which of the following took advantage of the presence of free ox
ygen in the oceans and atmosphere? a. the evolution of cellular respiration, which used oxygen to help harvest energy from organic molecules
b. the persistence of some animal groups in anaerobic habitats
c. the evolution of photosynthetic pigments that protected early algae from the corrosive effects of oxygen
d. the evolution of chloroplasts after early protists incorporated photosynthetic cyanobacteria
a. the evolution of cellular respiration, which used oxygen to help harvest energy from organic molecules
Explanation:
cellular respiration was an advantage because the process produces more ATP than anaerobic respiration, this is crucial for life because finding another metabolic pathway that is more efficient totally change things. Now a days it is still the same.
Prokaryotes were the first forms of life on Earth long before simple multicellular life appeared because of their ability to withstand extreme conditions. It is believed that the first living forms were bacteria combined with archaea in the microbial mat (multi-layered sheet).
