Fast 15 points

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

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary

Explain how mendel kept his pea plant from self pollination