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Question:

all are true of the photosynthetic machinery of cyanobacteria except ?

a) it involved a modified version of electron transportb)it was assembled from two anaerobic systems that had originated in different types of bacteriac)it evolved relatively late in the evolution of prokaryotes, sometimes after eukaryotes had arisend) it obtains electrons by splitting watere) it caused Earth's atmosphere to become an oxidizing one

Answer:

b) it was assembled from two anaerobic systems that had originated in different types of bacteria

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