Use the information to answer the following question. Animals need nitrates (NO2) to make protein. Nitrogen (N2) is found in the air, but not in a form that animals can use. Through the nitrogen cycle, nitrogen in the atmosphere is converted to nitrates. Which of these functions of bacteria in the nitrogen cycle most directly affects plants and animals in the food chain? A. Bacteria are important because they produce the nitrates that animals need. B. Bacteria are important because they transform nitrogen into nitrates that animals need.
Use the information to answer the following question.
Animals need nitrates (NO2) to make protein. Nitrogen (N2) is found in the air, but not in a form that animals can use. Through the nitrogen cycle, nitrogen in the atmosphere is converted to nitrates.
Which of these functions of bacteria in the nitrogen cycle most directly affects plants and animals in the food chain?
A.
Bacteria are important because they produce the nitrates that animals need.
B.
Bacteria are important because they transform nitrogen into nitrates that animals need.
C.
Bacteria are important because they allow plant roots to absorb nitrates from the air.
D.
Bacteria are important because they break down plant matter that competes with living plants for nitrates.
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