Thursday, December 17, 2009
Evolution of Plants and Oxygen in Atmosphere
Interesting graphic of evolution of plants and increase in oxygen level in atmosphere.
Prokaryotes (Cyanobacteria,etc.) do not seem to have contributed much to the O2, its only after evolution of Eukaryotes (Green Algae, Diatom Algae, etc.) that the O2 in air started to increase and land plants have contributed the most.