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Assessment
Which of the following is a primary way bacteria contribute to nutrient cycling in aquatic systems?
Decomposing organic matter
Absorbing sunlight for photosynthesis
Producing oxygen as a waste product
Transpiring water to the atmosphere
What role do nitrifying bacteria play in aquatic ecosystems?
They convert ammonia into nitrate.
They consume dissolved oxygen.
They reduce carbon dioxide levels.
They produce methane as a byproduct.
Which of the following statements about bacterial activity in aquatic environments is true?
Bacterial activity can lead to an increase in dissolved oxygen levels.
Bacteria are only found in polluted water bodies.
All bacteria consume nutrients in the same manner.
Bacteria can influence the bioavailability of nutrients in the water column.
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