Microorganisms developed from more complex organisms?

Oxygen played a key role in the evolution of complex organisms, according to new research published in BMC Evolutionary Biology. The study shows that organisms containing more varied cell types evolved following increases in atmospheric oxygen.

Hope it helps uh.

0 because theres a difference between pickled peppers and peers.

-hope this : -/

for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )