The Carbon Cycle & Sulphur Cycle
Sulphates are reduced to hydrogen sulphide by .....
Photosynthetic sulfur bacteria
Fresh air contains approximately ..... percent carbon dioxide by volume.
Cellobiose is metabolized directly by many microorganisms.
Which among the following develop in the upper portion of the Winogradsky column?
Purple and green sulfur bacteria use ..... as the electron donor to reduce carbon dioxide.
There are 5 questions to complete.