Which organism is a nitrogen-fixing symbiont of legumes?
A) Rhizobium
B) Nitrobacter
C) Pseudomonas
D) Nostoc
E) Azotobacter
Correct Answer:
Verified
Q13: A group of organisms of the same
Q14: Life would not be possible without
A)autotrophs.
B)primary consumers.
C)secondary
Q15: Which of the following is a nitrifying
Q16: The energy of photons is converted into
Q17: Using microbes to break down or remove
Q19: All of the following are abiotic factors,
Q20: The overall role that a species serves
Q21: What is the source of CO2 released
Q22: Which of the following is incorrect about
Q23: Analysis of a water sample by a
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