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Nature & Animals

Which process results when leguminous plants experience nitrate-limited soil?

A)Increased efficiency of biological nitrogen fixation
B)Decreased production of reactive oxygen species
C)Enhanced synthesis of plant hormones
D)Reduced carbon allocation to root respiration

💡 Explanation

Fixing limited nitrates leads to increased nitrogen fixation from the air via rhizobia-containing nodules due to enzyme nitrogenase expression; this is enhanced mutualism, because the mechanism uses symbiotic action rather than decreasing ROS sensitivity from stress.

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