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← Nature & AnimalsWhich outcome occurs when a plant supplies carbohydrates?
A)Enhanced nitrogen fixation rate occurs✓
B)Reduced root respiration is observed
C)Decreased phosphate uptake results
D)Diminished microbial competition prevails
💡 Explanation
Enhanced nitrogen fixation occurs because plants supply carbohydrates to symbiotic bacteria through a mutualistic association known as mycorrhizae; this carbohydrate transfer fuels the nitrogenase enzyme. Therefore fixation increases, rather than decreasing phosphate uptake.
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