Nitrogen-fixing bacteria convert N2 into _____________________.
A) Nitrates
B) Ammonia
C) Nitrites
D) Carbon dioxide
E) Methane
Correct Answer:
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Q21: The "net primary productivity" is:
A)The amount of
Q22: An organism that can use energy and
Q23: Carbon returns to the atmosphere:
A)As carbon dioxide
B)From
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A)Obtain nutrients from detritus
B)Return organic molecules to
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A)Are carnivores
B)Are herbivores
C)Are bacteria
D)Are fungi
E)All are
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