Which of the following is NOT a symbiotic pair of organisms?
A) onions and arbuscules
B) elk and rumen bacteria
C) bean plant and Rhizobium
D) orchid and mycorrhizae
E) sulfur and Thiobacillus
Correct Answer:
Verified
Q15: All of the following are true of
Q16: The guano deposited by seabirds is used
Q17: Adding untreated sewage to a freshwater lake
Q18: NH3 → No2-
A) takes place under anaerobic
Q19: All of the following organisms are involved
Q21: Which one of the following processes in
Q22: Drinking water supplies are routinely tested for
Q24: Residual chlorine must be maintained in
A) anaerobic
Q25: Bacteria can increase the Earthʹs temperature by
A)
Q38: Sedimentation of sludge occurs in
A)anaerobic sludge digestion.
B)primary
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