State two functions of blood plasma​

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen

The chemical form of energy that is useable by the cell to do work

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots