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Size and morphological complexity of eukaryotic alga versus cyanobacterium. Approximately scaled comparison of (A) the eukaryotic alga Euglena with (B) the relatively large complex cyanobacterium Synechocystis, here approximately to scale. Despite its extensive internal thylakoid membranes (magnified in C) and moderate polyploidy (100–200 copies of nucleoid), Synechocystis is approximately 1500 times smaller by volume. (Courtesy of Mark Farmer, University of Georgia.)
