Nitrogen-fixing bacteria, such as cyanobacteria, can use atmospheric nitrogen (n2) for their nitrogen source. nitrogen-fixing bacteria, such as cyanobacteria, can use atmospheric nitrogen (n2) for their nitrogen source. a. true b. false

a. True.

Cyanobacteria can use atmospheric nitrogen as their nitrogen source.

It takes a large amount of metabolic energy for them to do this, but cyanobacteria use sunlight for their energy supply.

a non redox reaction occurs when there is not a transfer of electrons. for redox reactions, which are reduction-oxidation reactions, a change in the oxidation number occurs. elements that are reduced gain electrons, and elements that are oxidized lose electrons.

explanation:

increased stability in the completion of fluorine's outer shell.