3 atoms (O3) Ozone is the triatomic form of oxygen. Oxygen isn’t the only thing we breathe, we also breathe nitrogen and a whole bunch of other gases. The difference between oxygen and ozone is ozone is o3 meaning it has 3 oxygen atoms instead of just one. I really hope this helped!
The answer is C since heterotroph means they don't have a way of making food
Complementary strand of mRNA would be: AAUCGGAAC
In short, Your Answer would be Option C
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