Is the process of cellular respiration exothermic or endothermic?

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

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

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.