Which of the following is NOT an agent of nitrogen fixation?
A) mycorrhizal fungi
B) cyanobacteria (blue-green algae)
C) bacteria associated with legume roots
D) lightning
E) actinomycete bacteria associated with alder roots
Correct Answer:
Verified
Q2: In aquatic ecosystems, the major agents of
Q3: Nitrate is converted to molecular nitrogen, N2,
Q8: Pocket gophers change the nitrogen cycle in
Q12: Phosphorus is an important constituent of
A) DNA.
B)
Q13: Nitrogen enrichment of ecosystems by human activity
Q17: Nitrogen fixation is an energy-demanding process because
Q18: Which of the following are nitrogen fixing
Q19: "Nitrification" is the conversion of
Rev: 12_06_2013_QC_42091
A) carbon
Q32: The release of nutrients from organic material
Q37: Nitrogen export was greatest in streams draining
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