Plant root nodules are
A) formed from gall-rotting bacteria that decompose plant roots.
B) harmful to plants, because the bacteria outcompete the plants for nutrients.
C) sites where nitrogen fixation occurs.
D) structures created by fungi and are found in all agricultural crops.
Correct Answer:
Verified
Q9: Frankia are
A) a type of arbuscular mycorrhizae.
B)
Q10: The fungal division containing arbuscular mycorrhizae is
Q11: Most nitrogen-fixing bacteria symbiotically associated with plants
Q12: The function of leghemoglobin in root nodules
Q13: Which compounds serve as major sources of
Q15: In insects, primary symbionts are _, while
Q16: The rumen is an _ habitat that
Q17: Which bacterium contains a large Ti plasmid
Q18: Where are ectomycorrhizae most highly developed?
A) boreal
Q19: Two organisms that both benefit from each
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