Multiple Choice
Vesicles and arbuscules are structures typically formed ____.
A) in bacterial cells when attacked by protozoa
B) above ground by certain soil fungi
C) by mesofauna when they incorporate organic materials into the soil
D) in root cells by fungi when they form mycorrhizae
E) none of the above
Correct Answer:

Verified
Correct Answer:
Verified
Q18: Most anaerobic organisms in soils are bacteria.
Q19: Which of the following organisms can commonly
Q20: The addition of large quantities of plant
Q21: Earthworms generally are most abundant in sandy,acid
Q22: Oxidation or reduction of inorganic soil constituents
Q24: Actinomycetes tend to dominate soils that are
Q25: Which of the following groups is not
Q26: Most soil organisms are heterotrophs.
Q27: Soil microorganisms often compete with higher plants
Q28: Many members of which group of soil