Multiple Choice
Refer to the figure below showing a simplified time line of the origin of life. 
Which event could have occurred between the existence of the "RNA world" and the evolution of the first cells?
A) The production of oxygen by cyanobacteria
B) The rise of lipid bilayer membranes
C) The prebiotic synthesis of ribonucleotides
D) Photosynthesis
E) Complementary base pairing between nitrogenous bases
Correct Answer:
Verified
Correct Answer:
Verified
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