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OpenStudy (anonymous):
According to modern ideas, the first step in the origin of life was ___________________ a. volcanic activity b. the formation of simple organic molecules c. the presence of oxygen in Earth’s environment d. the evolution of autotrophic prokaryotes
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OpenStudy (anonymous):
I believe its C. I'm not 100% sure though
OpenStudy (anonymous):
it has to be B. remember that O2 isn't the only component of organic molecules. it cant be c
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