The oxygen revolution changed Earth's environment dramatically. Which of the following took advantage of the presence of free oxygen 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
E) the evolution of multicellular eukaryotic colonies from communities of prokaryotes
The Sun as it appears from the surface of Earth before sunset.
The Sun is the nearest star to Earth.
The Atmosphere’s Oxygen Came from PhotosyntheticOrganisms
Normal oxygen sensor frequency is from about one to five times per second.
A hole in the exhaust system can cause outside air (containing oxygen) to be drawn into the exhaust ...
Modern Medical Technological Revolution