A) DNA
B) cell wall
C) nutrition
D) reproduction
Correct Answer: C
Solution :
Cyanobacteria are photoautotrophs, able to use \[C{{O}_{2}}\] as their sole carbon source and light as their energy source. However, unlike other use bacteria cyanobacteria use the same photosynthetic pathway as eukaryotic cells such as algae and higher plants (the "C-3" or "Calvin" cycle). Other photosynthetic bacteria use different light-harvesting pigments (bacteriochlorophyll) and metabolic pathways.
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