Organic molecules called blank are insoluble in water

When does dna replication(make a copy of itself)?

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

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?