Cyanobacteria
A) Only occur as single cells in anoxic surface waters
B) Only occur as thread like colonies in the tropics
C) Occur in a wide array of morphologies
D) Desperately need nitrogen from the dissolved state in surface waters

Question

Quizplus · Accepted Answer

Cyanobacteria are known for their diverse morphologies, including single cells, filaments, and colonies, and can be found in a variety of environments, not just anoxic or tropical waters. They also have the ability to fix atmospheric nitrogen, reducing their dependence on dissolved nitrogen sources.