DNA, Wood, Plastic, Slime, and rubber are all examples of? A) monomers
B) inorganic compounds
C) polymers
D) nitrogen based molecules

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